Elio (Italian Wikipedia)

Analysis of information sources in references of the Wikipedia article "Elio" in Italian language version.

Last modified: 08:07:23, 18 July 2026 (UTC)

Ref.Un. Ref.Website

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2625doi.org

2^nd place

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1312web.archive.org

1^st place

1010periodictable.com

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1,798^th place

81treccani.it

157^th place

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65aps.org

1,264^th place

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62iaea.org

1,135^th place

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55nih.gov

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44oadoi.org

612^th place

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33archive.org

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33adsabs.harvard.edu

14^th place

63^rd place

22sciencedirect.com

137^th place

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22springer.com

182^nd place

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21internazionale.it

8,821^st place

329^th place

21independent.co.uk

46^th place

97^th place

21photonics.com

low place

11grecoantico.com

low place

1,898^th place

11scienceblogs.com

low place

11newscientist.com

1,041^st place

1,120^th place

11gizmag.com

9,723^rd place

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11theguardian.com

16^th place

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11hathitrust.org

296^th place

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11jstor.org

23^rd place

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11archive.is

76^th place

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11corriere.it

214^th place

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11gsu.edu

2,981^st place

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11purdue.edu

1,391^st place

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11scitation.org

5,891^st place

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11ametsoc.org

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11acs.org

865^th place

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11iit.edu

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11nist.gov

708^th place

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11oup.com

292^nd place

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11sagepub.com

609^th place

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11polito.it

low place

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11polytechnique-insights.com

low place

11uwc.ac.za

low place

11usgs.gov

119^th place

226^th place

11bochealthcare.co.uk

low place

11worldcat.org

4^th place

18^th place

11unibo.it

3,746^th place

288^th place

11arizona.edu

1,520^th place

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11arstechnica.com

473^rd place

676^th place

11books.google.it

173^rd place

5^th place

acs.org (Global: 865^th place; Italian: 925^th place)

pubs.acs.org

(EN) R. James Cross, Martin Saunders e Horst Prinzbach, Putting Helium Inside Dodecahedrane, in Organic Letters, vol. 1, n. 9, 1º novembre 1999, pp. 1479-1481, DOI:10.1021/ol991037v. URL consultato il 24 luglio 2024.

adsabs.harvard.edu (Global: 14^th place; Italian: 63^rd place)

I. E. Beckwith e C. G. Miller, Aerothermodynamics and Transition in High-Speed Wind Tunnels at Nasa Langley, in Annual Review of Fluid Mechanics, vol. 22, 1990, pp. 419-439, Bibcode:1990AnRFM..22..419B, DOI:10.1146/annurev.fl.22.010190.002223.
Jakobsson, H., Simulations of the dynamics of the Large Earth-based Solar Telescope, in Astronomical & Astrophysical Transactions, vol. 13, 1997, pp. 35-46, Bibcode:1997A&AT...13...35J, DOI:10.1080/10556799708208113.
Belcher, James R., Slaton, William V., Raspet, Richard, Bass, Henry E. e Lightfoot, Jay, Working gases in thermoacoustic engines, in The Journal of the Acoustical Society of America, vol. 105, 1999, pp. 2677-2684, Bibcode:1999ASAJ..105.2677B, DOI:10.1121/1.426884, PMID 10335618.

ametsoc.org (Global: 4,084^th place; Italian: 4,210^th place)

journals.ametsoc.org

(EN) Kevin E. Trenberth e Lesley Smith, The Mass of the Atmosphere: A Constraint on Global Analyses, in Journal of Climate, vol. 18, n. 6, 15 marzo 2005, pp. 864-875, DOI:10.1175/JCLI-3299.1. URL consultato il 1º maggio 2024.

aps.org (Global: 1,264^th place; Italian: 894^th place)

link.aps.org

(EN) Maria G. Mayer, On Closed Shells in Nuclei, in Physical Review, vol. 74, n. 3, 1º agosto 1948, pp. 235-239, DOI:10.1103/PhysRev.74.235. URL consultato il 1º giugno 2022.
Maria Goeppert Mayer, On Closed Shells in Nuclei. II, in Physical Review, vol. 75, n. 12, 15 giugno 1949, pp. 1969-1970, DOI:10.1103/PhysRev.75.1969. URL consultato il 1º giugno 2022.
Luis W. Alvarez e Robert Cornog, Helium and Hydrogen of Mass 3, in Physical Review, vol. 56, n. 6, 15 settembre 1939, pp. 613-613, DOI:10.1103/PhysRev.56.613. URL consultato il 1º maggio 2024.
Aaron Novick, Half-Life of Tritium, in Physical Review, vol. 72, n. 10, 15 novembre 1947, pp. 972-972, DOI:10.1103/PhysRev.72.972.2. URL consultato il 1º giugno 2022.

journals.aps.org

P. D. Cottle, Z. Hu e B. V. Pritychenko, ${0}_{\mathrm{gs}}^{+}\phantom{\rule{0ex}{0ex}}\ensuremath{\rightarrow}\phantom{\rule{0ex}{0ex}}{2}_{1}^{+}$ Excitations in the Mirror Nuclei ${}^{32}\mathrm{Ar}$ and ${}^{32}\mathrm{Si}$, in Physical Review Letters, vol. 88, n. 17, 12 aprile 2002, pp. 172502, DOI:10.1103/PhysRevLett.88.172502. URL consultato il 27 gennaio 2025.

archive.is (Global: 76^th place; Italian: 11^th place)

Cady, H.P.; McFarland, D. F., Helium in Kansas Natural Gas, in Transactions of the Kansas Academy of Science, vol. 20, 1906, pp. 80-81, DOI:10.2307/3624645. URL consultato il 20 luglio 2008 (archiviato dall'url originale il 27 maggio 2012).

archive.org (Global: 6^th place; Italian: 2^nd place)

Jayant Vishnu Narlikar, From black clouds to black holes, collana World Scientific series in astronomy and astrophysics, 2ª ed., World Scientific, 1995, ISBN 978-981-02-2032-7.
Luis W. Alvarez e W. Peter Trower, Discovering Alvarez: selected works of Luis W. Alvarez, with commentary by his students and colleagues, University of Chicago Press, 1987, pp. 26-30, ISBN 978-0-226-81304-2. URL consultato il 1º maggio 2024.
Makhijani, Arjun e Gurney, Kevin, Mending the Ozone Hole: Science, Technology, and Policy, MIT Press, 1995, ISBN 0-262-13308-3.

arizona.edu (Global: 1,520^th place; Italian: 2,757^th place)

geo.arizona.edu

https://www.geo.arizona.edu/~reiners/arhdl/longer.htm U-Th/He dating, the University of Arizona Geochronology Lab

arstechnica.com (Global: 473^rd place; Italian: 676^th place)

HGST balloons disk capacity with helium-filled 6TB drive, su arstechnica.com.

bochealthcare.co.uk (Global: low place; Italian: low place)

Heliox21, su bochealthcare.co.uk, Linde Gas Therapeutics, 27 gennaio 2009.

books.google.it (Global: 173^rd place; Italian: 5^th place)

Andrea Frova, La scienza di tutti i giorni, BUR Biblioteca Univ. Rizzoli, 2010, p. 164, ISBN 978-88-17-04442-4.

corriere.it (Global: 214^th place; Italian: 9^th place)

Allarme elio, riserve agli sgoccioli, su corriere.it, Corriere della Sera.

doi.org (Global: 2^nd place; Italian: 3^rd place)

dx.doi.org

McFarland, D. F., Composition of Gas from a Well at Dexter, Kan, in Transactions of the Kansas Academy of Science, vol. 19, 1903, pp. 60-62, DOI:10.2307/3624173. URL consultato il 22 luglio 2008.
Cady, H.P., McFarland, D. F., Helium in Natural Gas, in Science, vol. 24, n. 611, 1906, p. 344, DOI:10.1126/science.24.611.344, PMID 17772798.
Cady, H.P.; McFarland, D. F., Helium in Kansas Natural Gas, in Transactions of the Kansas Academy of Science, vol. 20, 1906, pp. 80-81, DOI:10.2307/3624645. URL consultato il 20 luglio 2008 (archiviato dall'url originale il 27 maggio 2012).
Smith, E.M.; Goodwin, T.W.; Schillinger, J., Challenges to the Worldwide Supply of Helium in the Next Decade (PDF), in Advances in Cryogenic Engineering, 49 A, n. 710, 2003, pp. 119-138, DOI:10.1063/1.1774674. URL consultato il 20 luglio 2008 (archiviato dall'url originale il 25 giugno 2008).
Karen H. Kaplan, Helium shortage hampers research and industry, in Physics Today, vol. 60, n. 6, American Institute of Physics, giugno 2007, pp. 31-32, DOI:10.1063/1.2754594. URL consultato il 20 luglio 2008 (archiviato dall'url originale il 4 dicembre 2008).
(EN) Maria G. Mayer, On Closed Shells in Nuclei, in Physical Review, vol. 74, n. 3, 1º agosto 1948, pp. 235-239, DOI:10.1103/PhysRev.74.235. URL consultato il 1º giugno 2022.
Maria Goeppert Mayer, On Closed Shells in Nuclei. II, in Physical Review, vol. 75, n. 12, 15 giugno 1949, pp. 1969-1970, DOI:10.1103/PhysRev.75.1969. URL consultato il 1º giugno 2022.
(EN) Georges Audi, The history of nuclidic masses and of their evaluation, in International Journal of Mass Spectrometry, vol. 251, n. 2, 1º aprile 2006, pp. 85-94, DOI:10.1016/j.ijms.2006.01.048. URL consultato il 1º giugno 2022.
(EN) Richard Shurtleff e Edward Derringh, The most tightly bound nucleus, in American Journal of Physics, vol. 57, n. 6, 1989-06, pp. 552-552, DOI:10.1119/1.15970. URL consultato il 1º giugno 2022.
Luis W. Alvarez e Robert Cornog, Helium and Hydrogen of Mass 3, in Physical Review, vol. 56, n. 6, 15 settembre 1939, pp. 613-613, DOI:10.1103/PhysRev.56.613. URL consultato il 1º maggio 2024.
(EN) Kevin E. Trenberth e Lesley Smith, The Mass of the Atmosphere: A Constraint on Global Analyses, in Journal of Climate, vol. 18, n. 6, 15 marzo 2005, pp. 864-875, DOI:10.1175/JCLI-3299.1. URL consultato il 1º maggio 2024.
P. D. Cottle, Z. Hu e B. V. Pritychenko, ${0}_{\mathrm{gs}}^{+}\phantom{\rule{0ex}{0ex}}\ensuremath{\rightarrow}\phantom{\rule{0ex}{0ex}}{2}_{1}^{+}$ Excitations in the Mirror Nuclei ${}^{32}\mathrm{Ar}$ and ${}^{32}\mathrm{Si}$, in Physical Review Letters, vol. 88, n. 17, 12 aprile 2002, pp. 172502, DOI:10.1103/PhysRevLett.88.172502. URL consultato il 27 gennaio 2025.
(EN) R. James Cross, Martin Saunders e Horst Prinzbach, Putting Helium Inside Dodecahedrane, in Organic Letters, vol. 1, n. 9, 1º novembre 1999, pp. 1479-1481, DOI:10.1021/ol991037v. URL consultato il 24 luglio 2024.
Leonid B. Krivdin, An overview of Helium-3 NMR: Recent developments and applications, in Progress in Nuclear Magnetic Resonance Spectroscopy, vol. 136-137, 1º agosto 2023, pp. 83-109, DOI:10.1016/j.pnmrs.2023.08.001. URL consultato il 1º maggio 2024.
L.L. Lucas e M.P. Unterweger, Comprehensive review and critical evaluation of the half-life of tritium (PDF), in Journal of Research of the National Institute of Standards and Technology, vol. 105, n. 4, 2000-07, p. 541, DOI:10.6028/jres.105.043. URL consultato il 10 aprile 2022.
Aaron Novick, Half-Life of Tritium, in Physical Review, vol. 72, n. 10, 15 novembre 1947, pp. 972-972, DOI:10.1103/PhysRev.72.972.2. URL consultato il 1º giugno 2022.
Noriyuki Momoshima, TRITIUM IN THE ENVIRONMENT, in Radiation Protection Dosimetry, vol. 198, n. 13-15, 1º settembre 2022, pp. 896-903, DOI:10.1093/rpd/ncac002. URL consultato il 27 gennaio 2025.
(EN) Ian A. Crawford, Lunar resources: A review, in Progress in Physical Geography: Earth and Environment, vol. 39, n. 2, 2015-04, pp. 137-167, DOI:10.1177/0309133314567585. URL consultato il 1º maggio 2024.
(EN) R. A. W. Bradford, The effect of hypothetical diproton stability on the universe, in Journal of Astrophysics and Astronomy, vol. 30, n. 2, 2009-06, pp. 119-131, DOI:10.1007/s12036-009-0005-x. URL consultato il 27 gennaio 2025.
Doru S. Delion, Introduction, vol. 819, Springer Berlin Heidelberg, 2010, pp. 3-10, DOI:10.1007/978-3-642-14406-6_1, ISBN 978-3-642-14405-9. URL consultato il 5 marzo 2023.
I. Mukul, M. Hass e O. Heber, A 6He production facility and an electrostatic trap for measurement of the beta–neutrino correlation, in Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 899, 2018-08, pp. 16-21, DOI:10.1016/j.nima.2018.05.017. URL consultato il 1º maggio 2024.
I. E. Beckwith e C. G. Miller, Aerothermodynamics and Transition in High-Speed Wind Tunnels at Nasa Langley, in Annual Review of Fluid Mechanics, vol. 22, 1990, pp. 419-439, Bibcode:1990AnRFM..22..419B, DOI:10.1146/annurev.fl.22.010190.002223.
Jakobsson, H., Simulations of the dynamics of the Large Earth-based Solar Telescope, in Astronomical & Astrophysical Transactions, vol. 13, 1997, pp. 35-46, Bibcode:1997A&AT...13...35J, DOI:10.1080/10556799708208113.
Belcher, James R., Slaton, William V., Raspet, Richard, Bass, Henry E. e Lightfoot, Jay, Working gases in thermoacoustic engines, in The Journal of the Acoustical Society of America, vol. 105, 1999, pp. 2677-2684, Bibcode:1999ASAJ..105.2677B, DOI:10.1121/1.426884, PMID 10335618.

doi.org

I. Mukul, M. Hass e O. Heber, A 6He production facility and an electrostatic trap for measurement of the beta–neutrino correlation, in Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 899, 2018-08, pp. 16-21, DOI:10.1016/j.nima.2018.05.017. URL consultato il 1º maggio 2024.

gizmag.com (Global: 9,723^rd place; Italian: low place)

David Szondy, We may not be running out of helium after all, su gizmag.com. URL consultato il 1º aprile 2016.

grecoantico.com (Global: low place; Italian: 1,898^th place)

ἥλιος, su Dizionario Greco Antico Olivetti.

gsu.edu (Global: 2,981^st place; Italian: 2,702^nd place)

hyperphysics.phy-astr.gsu.edu

Shell Model of Nucleus, su hyperphysics.phy-astr.gsu.edu. URL consultato il 1º giugno 2022.

hathitrust.org (Global: 296^th place; Italian: 730^th place)

babel.hathitrust.org

Luigi Palmieri, La riga dell'Helium apparsa in una recente sublimazione vesuviana, in Rendiconto dell'Accademia delle scienze fisiche e matematiche (Napoli), vol. 20, 1881, p. 223.
«Raccolsi alcun tempo fa una sostanza amorfa di consistenza butirracea e di colore giallo sbiadato sublimata sull'orlo di una fumarola prossima alla bocca di eruzione. Saggiata questa sublimazione allo spettroscopio, ho ravvisato le righe del sodio e del potassio ed una lineare ben distinta che corrisponde esattamente alla D₃ che è quella dell'Helium. Do per ora il semplice annunzio del fatto, proponendomi di ritornare sopra questo argomento, dopo di aver sottoposta la sublimazione ad una analisi chimica.»

iaea.org (Global: 1,135^th place; Italian: 1,023^rd place)

www-nds.iaea.org

Livechart - Table of Nuclides - Nuclear structure and decay data, su www-nds.iaea.org. URL consultato il 1º maggio 2024.
Livechart - Table of Nuclides - Nuclear structure and decay data, su www-nds.iaea.org. URL consultato il 1º giugno 2022.

iit.edu (Global: low place; Italian: low place)

csrri.iit.edu

Physics 561: Radioactivity, su csrri.iit.edu. URL consultato il 1º maggio 2024.

independent.co.uk (Global: 46^th place; Italian: 97^th place)

Steve Connor, Why the world is running out of helium, in The Independent, London, 23 agosto 2010. URL consultato il 16 settembre 2013.

internazionale.it (Global: 8,821^st place; Italian: 329^th place)

dizionario.internazionale.it

elio--elio, su Il nuolo De Mauro - dizionario internazionale.

jstor.org (Global: 23^rd place; Italian: 85^th place)

McFarland, D. F., Composition of Gas from a Well at Dexter, Kan, in Transactions of the Kansas Academy of Science, vol. 19, 1903, pp. 60-62, DOI:10.2307/3624173. URL consultato il 22 luglio 2008.

newscientist.com (Global: 1,041^st place; Italian: 1,120^th place)

Witchalls, Clint (18 August 2010) Nobel prizewinner: We are running out of helium. New Scientist.

nih.gov (Global: 5^th place; Italian: 6^th place)

ncbi.nlm.nih.gov

Cady, H.P., McFarland, D. F., Helium in Natural Gas, in Science, vol. 24, n. 611, 1906, p. 344, DOI:10.1126/science.24.611.344, PMID 17772798.
B. Fowler, K. N. Ackles e G. Porlier, Effects of inert gas narcosis on behavior—a critical review, in Undersea Biomedical Research Journal, vol. 12, 1985, pp. 369-402, PMID 4082343. URL consultato il 23 novembre 2017 (archiviato dall'url originale il 25 dicembre 2010).
Thomas, J. R., Reversal of nitrogen narcosis in rats by helium pressure, in Undersea Biomed. Res., vol. 3, 1976, pp. 249-59, PMID 969027. URL consultato il 6 agosto 2008 (archiviato dall'url originale il 6 dicembre 2008).
W. L., Jr. Hunger e P. B. Bennett, The causes, mechanisms and prevention of the high pressure nervous syndrome, in Undersea Biomed. Res., vol. 1, 1974, pp. 1-28, ISSN 0093-5387 (WC · ACNP), OCLC 2068005, PMID 4619860. URL consultato il 23 novembre 2017 (archiviato dall'url originale il 25 dicembre 2010).
Belcher, James R., Slaton, William V., Raspet, Richard, Bass, Henry E. e Lightfoot, Jay, Working gases in thermoacoustic engines, in The Journal of the Acoustical Society of America, vol. 105, 1999, pp. 2677-2684, Bibcode:1999ASAJ..105.2677B, DOI:10.1121/1.426884, PMID 10335618.

nist.gov (Global: 708^th place; Italian: 720^th place)

nvlpubs.nist.gov

L.L. Lucas e M.P. Unterweger, Comprehensive review and critical evaluation of the half-life of tritium (PDF), in Journal of Research of the National Institute of Standards and Technology, vol. 105, n. 4, 2000-07, p. 541, DOI:10.6028/jres.105.043. URL consultato il 10 aprile 2022.

oadoi.org (Global: 612^th place; Italian: 14^th place)

Cady, H.P., McFarland, D. F., Helium in Natural Gas, in Science, vol. 24, n. 611, 1906, p. 344, DOI:10.1126/science.24.611.344, PMID 17772798.
I. E. Beckwith e C. G. Miller, Aerothermodynamics and Transition in High-Speed Wind Tunnels at Nasa Langley, in Annual Review of Fluid Mechanics, vol. 22, 1990, pp. 419-439, Bibcode:1990AnRFM..22..419B, DOI:10.1146/annurev.fl.22.010190.002223.
Jakobsson, H., Simulations of the dynamics of the Large Earth-based Solar Telescope, in Astronomical & Astrophysical Transactions, vol. 13, 1997, pp. 35-46, Bibcode:1997A&AT...13...35J, DOI:10.1080/10556799708208113.
Belcher, James R., Slaton, William V., Raspet, Richard, Bass, Henry E. e Lightfoot, Jay, Working gases in thermoacoustic engines, in The Journal of the Acoustical Society of America, vol. 105, 1999, pp. 2677-2684, Bibcode:1999ASAJ..105.2677B, DOI:10.1121/1.426884, PMID 10335618.

oup.com (Global: 292^nd place; Italian: 395^th place)

academic.oup.com

Noriyuki Momoshima, TRITIUM IN THE ENVIRONMENT, in Radiation Protection Dosimetry, vol. 198, n. 13-15, 1º settembre 2022, pp. 896-903, DOI:10.1093/rpd/ncac002. URL consultato il 27 gennaio 2025.

periodictable.com (Global: low place; Italian: 1,798^th place)

Isotope data for helium-4 in the Periodic Table, su periodictable.com. URL consultato il 27 gennaio 2025.
Isotope data for sulfur-32 in the Periodic Table, su periodictable.com. URL consultato il 1º maggio 2024.
Isotope data for argon-36 in the Periodic Table, su periodictable.com. URL consultato il 1º maggio 2024.
Isotope data for titanium-46 in the Periodic Table, su periodictable.com. URL consultato il 1º maggio 2024.
Isotope data for tritium in the Periodic Table, su periodictable.com. URL consultato il 24 luglio 2024.
Isotope data for helium-5 in the Periodic Table, su periodictable.com. URL consultato il 28 marzo 2023.
Isotope data for helium-6 in the Periodic Table, su periodictable.com. URL consultato il 28 marzo 2023.
Isotope data for helium-7 in the Periodic Table, su periodictable.com. URL consultato il 1º maggio 2024.
Isotope data for helium-8 in the Periodic Table, su periodictable.com. URL consultato il 1º maggio 2024.
Isotope data for helium-10 in the Periodic Table, su periodictable.com. URL consultato il 27 gennaio 2025.

photonics.com (Global: low place; Italian: low place)

Melinda Rose, Helium: Up, Up and Away?, su photonics.com, Ottobre 2008. URL consultato il 27 febbraio 2010.

polito.it (Global: low place; Italian: 1,449^th place)

webthesis.biblio.polito.it

ENERGY ANALYSIS OF EXTRACTING HELIUM-3 FROM THE MOON (PDF), su https://webthesis.biblio.polito.it/.

polytechnique-insights.com (Global: low place; Italian: low place)

(EN) Helium-3 from the lunar surface for nuclear fusion?, su Polytechnique Insights. URL consultato il 1º maggio 2024.

purdue.edu (Global: 1,391^st place; Italian: 1,068^th place)

chemed.chem.purdue.edu

Radioactive Decay, su chemed.chem.purdue.edu..

sagepub.com (Global: 609^th place; Italian: 762^nd place)

journals.sagepub.com

(EN) Ian A. Crawford, Lunar resources: A review, in Progress in Physical Geography: Earth and Environment, vol. 39, n. 2, 2015-04, pp. 137-167, DOI:10.1177/0309133314567585. URL consultato il 1º maggio 2024.

scienceblogs.com (Global: low place; Italian: low place)

Ethan Siegel, Why the World Will Run Out of Helium, su Starts With A Bang, Scienceblogs.com, 12 dicembre 2012. URL consultato il 16 settembre 2013.

sciencedirect.com (Global: 137^th place; Italian: 192^nd place)

(EN) Georges Audi, The history of nuclidic masses and of their evaluation, in International Journal of Mass Spectrometry, vol. 251, n. 2, 1º aprile 2006, pp. 85-94, DOI:10.1016/j.ijms.2006.01.048. URL consultato il 1º giugno 2022.
Leonid B. Krivdin, An overview of Helium-3 NMR: Recent developments and applications, in Progress in Nuclear Magnetic Resonance Spectroscopy, vol. 136-137, 1º agosto 2023, pp. 83-109, DOI:10.1016/j.pnmrs.2023.08.001. URL consultato il 1º maggio 2024.

scitation.org (Global: 5,891^st place; Italian: 4,637^th place)

aapt.scitation.org

(EN) Richard Shurtleff e Edward Derringh, The most tightly bound nucleus, in American Journal of Physics, vol. 57, n. 6, 1989-06, pp. 552-552, DOI:10.1119/1.15970. URL consultato il 1º giugno 2022.

springer.com (Global: 182^nd place; Italian: 250^th place)

link.springer.com

(EN) R. A. W. Bradford, The effect of hypothetical diproton stability on the universe, in Journal of Astrophysics and Astronomy, vol. 30, n. 2, 2009-06, pp. 119-131, DOI:10.1007/s12036-009-0005-x. URL consultato il 27 gennaio 2025.
Doru S. Delion, Introduction, vol. 819, Springer Berlin Heidelberg, 2010, pp. 3-10, DOI:10.1007/978-3-642-14406-6_1, ISBN 978-3-642-14405-9. URL consultato il 5 marzo 2023.

theguardian.com (Global: 16^th place; Italian: 26^th place)

Ian Sample, Huge helium gas find in east Africa averts medical shortage, in The Guardian, 28 giugno 2016.

treccani.it (Global: 157^th place; Italian: 7^th place)

elio, in Treccani.it – Enciclopedie on line, Roma, Istituto dell'Enciclopedia Italiana.

unibo.it (Global: 3,746^th place; Italian: 288^th place)

acnpsearch.unibo.it

W. L., Jr. Hunger e P. B. Bennett, The causes, mechanisms and prevention of the high pressure nervous syndrome, in Undersea Biomed. Res., vol. 1, 1974, pp. 1-28, ISSN 0093-5387 (WC · ACNP), OCLC 2068005, PMID 4619860. URL consultato il 23 novembre 2017 (archiviato dall'url originale il 25 dicembre 2010).

usgs.gov (Global: 119^th place; Italian: 226^th place)

minerals.usgs.gov

U.S. Department of the Interior, U.S. Geological Survey, Helium, in Mineral Commodity Summaries 2014, 2015, pp. 72-73.

uwc.ac.za (Global: low place; Italian: low place)

etd.uwc.ac.za

(EN) Lance Garth Davis, Design of a helium-6 production target for the iThemba LABS Radioactive-ion Beam Facility, 2018. URL consultato il 1º maggio 2024.

web.archive.org (Global: 1^st place; Italian: 1^st place)

Press release: The unbearable lightness of helium..., su EurekAlert, European Association of Geochemistry, 19 agosto 2015. URL consultato il 1º aprile 2016 (archiviato dall'url originale il 6 settembre 2015).
Thayer Watkins, The Old Quantum Physics of Niels Bohr and the Spectrum of Helium: A Modified Version of the Bohr Model, su sjsu.edu, San Jose State University. URL consultato il 23 novembre 2017 (archiviato dall'url originale il 26 maggio 2009).
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worldcat.org (Global: 4^th place; Italian: 18^th place)

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