Transformator (Norwegian Wikipedia)

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«400 Hz Electrical Systems». Aerospaceweb.org. Besøkt 21. mai 2007.

archive.org (Global: 6^th place; Norwegian: 26^th place)

Faraday, Michael (1834). «Experimental Researches on Electricity, 7th Series». Philosophical Transactions of the Royal Society. 124: 77–122. doi:10.1098/rstl.1834.0008.
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Hughes, Thomas P. (1993). Networks of Power: Electrification in Western Society, 1880-1930. Baltimore: The Johns Hopkins University Press. s. 96. ISBN 0-8018-2873-2. Besøkt 9. september 2009.
Uppenborn, F. J. (1889). History of the Transformer. London: E. & F. N. Spon. s. 35–41.
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Heathcote, Martin (3. november 1998). J & P Transformer Book (12th utg.). Newnes. s. 2–3. ISBN 0-7506-1158-8.
Winders, John J., Jr. (2002). Power Transformer Principles and Applications. CRC. s. 20–21.
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basler.com (Global: low place; Norwegian: low place)

Lawhead, Larry (2006). «Three Phase Transformer Winding Configurations and Differential Relay Compensation» (PDF). Georgia Tech 60th Protective Relay Conference. s. 8–10. Arkivert fra originalen (PDF) 16. desember 2011. Besøkt 23. februar 2012.

blnz.com (Global: low place; Norwegian: low place)

Nailen, Richard (mai 2005). «Why We Must Be Concerned With Transformers». Electrical Apparatus. Arkivert fra originalen 29. april 2009.

bme.hu (Global: low place; Norwegian: low place)

omikk.bme.hu

«Bláthy, Ottó Titusz». Budapest University of Technology and Economics, National Technical Information Centre and Library. Besøkt 29. februar 2012.

bplglobal.net (Global: low place; Norwegian: low place)

Hartley, William H. (2003). Analysis of Transformer Failures. 36th Annual Conference of the International Association of Engineering Insurers. s. 7 (fig. 6)7 (fig. 6). Arkivert fra originalen 20. oktober 2013. Besøkt 30. januar 2013.

cdc.gov (Global: 251^st place; Norwegian: 784^th place)

atsdr.cdc.gov

«ASTDR ToxFAQs for Polychlorinated Biphenyls». 2001. Arkivert fra originalen 28. desember 2009. Besøkt 10. juni 2007.

cired.net (Global: low place; Norwegian: low place)

De Keulenaer, Hans (2001). «The Scope for Energy Saving in the EU through the Use of Energy-Efficient Electricity Distribution Transformers» (PDF). Institution of Engineering and Technology. Arkivert fra originalen (PDF) 4. mars 2016. Besøkt 10. juli 2014.

cromptonusa.com (Global: low place; Norwegian: low place)

«Polarity Markings on Instrument Transformers» (PDF). Arkivert fra originalen (PDF) 3. juni 2016. Besøkt 13. april 2013.

csa.com (Global: low place; Norwegian: low place)

md1.csa.com

Riemersma, H.; Eckels, P.; Barton, M.; Murphy, J.; Litz, D.; Roach, J. (1981). «Application of Superconducting Technology to Power Transformers». IEEE Transactions on Power Apparatus and Systems. PAS-100 (7): 3398. doi:10.1109/TPAS.1981.316682. Arkivert fra originalen 1. september 2007.

d-nb.info (Global: 281^st place; Norwegian: 37^th place)

Neidhöfer, Gerhard (2008). Michael von Dolivo-Dobrowolsky and Three-Phase: The Beginnings of Modern Drive Technology and Power Supply (på tysk). In collaboration with VDE "History of Electrical Engineering" Committee (2 utg.). Berlin: VDE-Verl. ISBN 978-3-8007-3115-2.

doi.org (Global: 2^nd place; Norwegian: 6^th place)

Faraday, Michael (1834). «Experimental Researches on Electricity, 7th Series». Philosophical Transactions of the Royal Society. 124: 77–122. doi:10.1098/rstl.1834.0008.
De Fonveille, W. (22. januar 1880). «Gas and Electricity in Paris». Nature. 21 (534): 283. Bibcode:1880Natur..21..282D. doi:10.1038/021282b0. Besøkt 9. januar 2009.
Allan, D.J. (januar 1991). «Power Transformers – The Second Century». Power Engineering Journal. 5 (1): 5–14. doi:10.1049/pe:19910004.
Halacsy, A. A.; Von Fuchs, G. H. (april 1961). «Transformer Invented 75 Years Ago». IEEE Transactions of the American Institute of Electrical Engineers. 80 (3): 121–125. doi:10.1109/AIEEPAS.1961.4500994. Besøkt 29. februar 2012.
Coltman, J.W.; (januar–februar 2002). «The Transformer [Historical Overview]». Industry Applications Magazine, IEEE. 8 (1): 8–15. doi:10.1109/2943.974352. Besøkt 29. februar 2012.
Crosby, D. (1958). «The Ideal Transformer». IRE Transactions on Circuit.Theory. 5 (2): 145–145. doi:10.1109/TCT.1958.1086447.
Gururaj, B.I. (juni 1963). «Natural Frequencies of 3-Phase Transformer Windings». IEEE Transactions on Power Apparatus and Systems. 82 (66): 318–329. doi:10.1109/TPAS.1963.291359.
Riemersma, H.; Eckels, P.; Barton, M.; Murphy, J.; Litz, D.; Roach, J. (1981). «Application of Superconducting Technology to Power Transformers». IEEE Transactions on Power Apparatus and Systems. PAS-100 (7): 3398. doi:10.1109/TPAS.1981.316682. Arkivert fra originalen 1. september 2007.
Boteler, D. H.; Pirjola, R. J.; Nevanlinna, H. (1998). «The Effects of Geomagnetic Disturbances On Electrical Systems at the Earth's Surface». Advances in Space Research. 22: 17–27. doi:10.1016/S0273-1177(97)01096-X.
Mehta, S.P.; Aversa, N.; Walker, M.S. (juli 1997). «Transforming Transformers [Superconducting windings]» (PDF). IEEE Spectrum. 34 (7): 43–49. doi:10.1109/6.609815. Besøkt 14. november 2012.
Beltz, Robert (2000). Application Considerations for High Resistance Ground Retrofits in Pulp and Paper Mills. Pulp and Paper Industry Technical Conference. doi:10.1109/PAPCON.2000.854186.

du.edu (Global: 9,571^st place; Norwegian: 8,590^th place)

Calvert, James (2001). «Inside Transformers». University of Denver. Arkivert fra originalen 9. mai 2007. Besøkt 19. mai 2007.

ecmweb.com (Global: low place; Norwegian: low place)

Lane, Keith (2007). «The Basics of Large Dry-Type Transformers». EC&M. Besøkt 29. januar 2013.

edisontechcenter.org (Global: low place; Norwegian: 5,366^th place)

«Laufen to Frankfurt 1891». Edison Tech Center. Besøkt 14. januar 2015.

ee-reviewonline.com (Global: low place; Norwegian: low place)

EE-Reviewonline.com. «Steinmetz's Formula for Magnetic Hysteresis». Arkivert fra originalen 20. februar 2015. Besøkt 7. februar 2013.

electrical4u.com (Global: low place; Norwegian: low place)

«Conservator Tank of Transformer | Electrical4U». https://www.electrical4u.com/ (på engelsk). 24. juni 2024. Besøkt 22. juli 2025. Ekstern lenke i |verk= (hjelp)
«Silica Gel Breather of Transformer | Electrical4U». https://www.electrical4u.com/ (på engelsk). 21. juni 2024. Besøkt 22. juli 2025. Ekstern lenke i |verk= (hjelp)

electrical4u.net (Global: low place; Norwegian: low place)

Ayothi, Manimuthu. «Transformer Bushing Operating Principle | Electrical4u» (på engelsk). Besøkt 22. juli 2025.

electricity-today.com (Global: low place; Norwegian: low place)

Figueroa, Elisa; m.fl. (januar–februar 2009). «Low Frequency Heating Field Dry-Out of a 750 MVA 500 kV Auto Transformer» (PDF). Electricity Today. Arkivert fra originalen (PDF) 7. januar 2012. Besøkt 28. februar 2012.

federalpacific.com (Global: low place; Norwegian: low place)

«Understanding Transformer Noise» (PDF). FP. Arkivert fra originalen (PDF) 10. mai 2006. Besøkt 30. januar 2013.

freepatentsonline.com (Global: 7,823^rd place; Norwegian: low place)

Zipernowsky, K. «Induction Coil» (PDF). U.S. Patent 352 105, issued Nov. 2, 1886. Besøkt 8. juli 2009.

fsu.edu (Global: 2,949^th place; Norwegian: 4,369^th place)

magnet.fsu.edu

«Stanley Transformer». Los Alamos National Laboratory; University of Florida. Arkivert fra originalen 19. januar 2009. Besøkt 9. januar 2009.

gecompany.com (Global: low place; Norwegian: low place)

gepower.com.cindmz.gecompany.com

Walling, Reigh (mai 2007). Distribution Transformer Thermal Behaviour and Aging in Local-Delivery Distribution Systems (PDF). 19th International Conference on Electricity Distribution. Paper 0720. Arkivert fra originalen (PDF) 12. mai 2014. Besøkt 11. februar 2013.

gedigitalenergy.com (Global: low place; Norwegian: low place)

«Connections - Polarity» (PDF). Besøkt 13. april 2013.

google.com (Global: 109^th place; Norwegian: 357^th place)

Stanley, William, Jr. «Induction Coil». U.S. Patent 349 311, issued Sept. 21, 1886. Besøkt 13. juli 2009.
Westinghouse, George, Jr. «Electrical Converter». U.S. Patent 366 362, issued July 12, 1887.

gpo.gov (Global: 1,819^th place; Norwegian: 4,981^st place)

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Hydroelectric Research and Technical Services Group. «Transformers: Basics, Maintenance, and Diagnostics» (PDF). U.S. Dept. of the Interior, Bureau of Reclamation. s. 12. Besøkt 27. mars 2012.

hitachienergy.com (Global: low place; Norwegian: low place)

«Verdensledende oljelaboratorium i Drammen | Hitachi Energy». www.hitachienergy.com (på engelsk). Besøkt 22. juli 2025.

hpo.hu (Global: low place; Norwegian: low place)

«Bláthy, Ottó Titusz (1860–1939)». Hungarian Patent Office. Arkivert fra originalen 2. desember 2010. Besøkt 29. januar 2004.

hsb.com (Global: low place; Norwegian: low place)

Hartley, William H. (~2011). «An Analysis of Transformer Failures, Part 1 – 1988 through 1997». The Locomotive. Arkivert fra originalen 18. juni 2018. Besøkt 30. januar 2013.

iec.ch (Global: 6,187^th place; Norwegian: 3,569^th place)

iec.ch

«Ottó Bláthy, Miksa Déri, Károly Zipernowsky». IEC Techline. Arkivert fra originalen 24. september 2015. Besøkt 14. februar 2014.
International Electrotechnical Commission. Otto Blathy, Miksa Déri, Károly Zipernowsky. IEC History. Arkivert fra originalen 6. desember 2010. Besøkt 17. mai 2007.

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IEC Std 60404-2 Magnetic Materials – Part 2: Methods of Measurement of the Magnetic Properties . . .

ieee.org (Global: 912^th place; Norwegian: 1,358^th place)

ieeexplore.ieee.org

Allan, D.J. (januar 1991). «Power Transformers – The Second Century». Power Engineering Journal. 5 (1): 5–14. doi:10.1049/pe:19910004.
Halacsy, A. A.; Von Fuchs, G. H. (april 1961). «Transformer Invented 75 Years Ago». IEEE Transactions of the American Institute of Electrical Engineers. 80 (3): 121–125. doi:10.1109/AIEEPAS.1961.4500994. Besøkt 29. februar 2012.
Coltman, J.W.; (januar–februar 2002). «The Transformer [Historical Overview]». Industry Applications Magazine, IEEE. 8 (1): 8–15. doi:10.1109/2943.974352. Besøkt 29. februar 2012.
ANSI/IEEE C57.13, ANS Requirements for Instrument Transformers. New York, N.Y.: IEEE. 1993 [1978]. s. 4 (§3.26). ISBN 0-7381-4299-9.
Gururaj, B.I. (juni 1963). «Natural Frequencies of 3-Phase Transformer Windings». IEEE Transactions on Power Apparatus and Systems. 82 (66): 318–329. doi:10.1109/TPAS.1963.291359.
Beltz, Robert (2000). Application Considerations for High Resistance Ground Retrofits in Pulp and Paper Mills. Pulp and Paper Industry Technical Conference. doi:10.1109/PAPCON.2000.854186.

institutoideal.org (Global: low place; Norwegian: low place)

«Hungarian Inventors and Their Inventions». Institute for Developing Alternative Energy in Latin America. Arkivert fra originalen 22. mars 2012. Besøkt 3. mars 2012.

kfki.hu (Global: low place; Norwegian: low place)

Nagy, Árpád Zoltán (11. oktober 1996). «Lecture to Mark the 100th Anniversary of the Discovery of the Electron in 1897 (preliminary text)». Budapest. Arkivert fra originalen 25. november 2012. Besøkt 9. juli 2009.

lokalhistoriewiki.no (Global: low place; Norwegian: 211^th place)

«A/S Per Kure – lokalhistoriewiki.no». lokalhistoriewiki.no. Besøkt 21. juli 2025.

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Lucas, J.R. «Historical Development of the Transformer» (PDF). IEE Sri Lanka Centre. Besøkt 1. mars 2012.

nas.edu (Global: low place; Norwegian: low place)

«Joseph Henry». Distinguished Members Gallery, National Academy of Sciences. Arkivert fra originalen 13. desember 2013. Besøkt 30. november 2006.

nve.no (Global: 2,844^th place; Norwegian: 18^th place)

publikasjoner.nve.no

«Transformatorgjennomføringer –tilstandskontroll og anbefalinger» (PDF).

osti.gov (Global: 2,098^th place; Norwegian: 5,994^th place)

Coltman, J. W. (januar 1988). «The Transformer». Scientific American. s. 86–95. OSTI 6851152.

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Uth, Robert (12. desember 2000). «Tesla Coil». Tesla: Master of Lightning. PBS.org. Besøkt 20. mai 2008.

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superpower-inc.com (Global: low place; Norwegian: low place)

Mehta, S.P.; Aversa, N.; Walker, M.S. (juli 1997). «Transforming Transformers [Superconducting windings]» (PDF). IEEE Spectrum. 34 (7): 43–49. doi:10.1109/6.609815. Besøkt 14. november 2012.

termeszetvilaga.hu (Global: low place; Norwegian: low place)

Károly, Simonyi. «The Faraday Law With a Magnetic Ohm's Law». Természet Világa. Besøkt 1. mars 2012.

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Dixon, L.H., Jr. (1997). «Eddy Current Losses in Transformer Windings» (PDF). Texas Instrument: R2–1–to–R2–10.
Dixon, Lloyd (2001). «Power Transformer Design» (PDF). Magnetics Design Handbook. Texas Instruments.

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Tillman, Robert F. (2004). «§3.4 Load and Thermal Performance in Chap. 3 - Ancillary Topics» (PDF). The Electric Power Engineering Handbook (Online utg.). CRC Press. s. §3.4.8§3.4.8. ISBN 0-8493-8578-4. ^{[død lenke]}

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Jeszenszky, Sándor. «Electrostatics and Electrodynamics at Pest University in the Mid-19th Century» (PDF). University of Pavia. Besøkt 3. mars 2012.

uspto.gov (Global: 2,155^th place; Norwegian: 3,170^th place)

patft.uspto.gov

Tesla, Nikola. «System of Electrical Lighting». U.S. Patent 454 622, issued June 23, 1891. Arkivert fra originalen 15. januar 2019. Besøkt 20. februar 2015.

vias.org (Global: low place; Norwegian: low place)

Lee, Reuben. «Air-Core Transformers». Electronic Transformers and Circuits. Besøkt 22. mai 2007.
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web.archive.org (Global: 1^st place; Norwegian: 1^st place)

«Joseph Henry». Distinguished Members Gallery, National Academy of Sciences. Arkivert fra originalen 13. desember 2013. Besøkt 30. november 2006.
«Stanley Transformer». Los Alamos National Laboratory; University of Florida. Arkivert fra originalen 19. januar 2009. Besøkt 9. januar 2009.
«Hungarian Inventors and Their Inventions». Institute for Developing Alternative Energy in Latin America. Arkivert fra originalen 22. mars 2012. Besøkt 3. mars 2012.
«Bláthy, Ottó Titusz (1860–1939)». Hungarian Patent Office. Arkivert fra originalen 2. desember 2010. Besøkt 29. januar 2004.
Nagy, Árpád Zoltán (11. oktober 1996). «Lecture to Mark the 100th Anniversary of the Discovery of the Electron in 1897 (preliminary text)». Budapest. Arkivert fra originalen 25. november 2012. Besøkt 9. juli 2009.
«Ottó Bláthy, Miksa Déri, Károly Zipernowsky». IEC Techline. Arkivert fra originalen 24. september 2015. Besøkt 14. februar 2014.
International Electrotechnical Commission. Otto Blathy, Miksa Déri, Károly Zipernowsky. IEC History. Arkivert fra originalen 6. desember 2010. Besøkt 17. mai 2007.
Tesla, Nikola. «System of Electrical Lighting». U.S. Patent 454 622, issued June 23, 1891. Arkivert fra originalen 15. januar 2019. Besøkt 20. februar 2015.
Calvert, James (2001). «Inside Transformers». University of Denver. Arkivert fra originalen 9. mai 2007. Besøkt 19. mai 2007.
«Polarity Markings on Instrument Transformers» (PDF). Arkivert fra originalen (PDF) 3. juni 2016. Besøkt 13. april 2013.
De Keulenaer, Hans (2001). «The Scope for Energy Saving in the EU through the Use of Energy-Efficient Electricity Distribution Transformers» (PDF). Institution of Engineering and Technology. Arkivert fra originalen (PDF) 4. mars 2016. Besøkt 10. juli 2014.
Riemersma, H.; Eckels, P.; Barton, M.; Murphy, J.; Litz, D.; Roach, J. (1981). «Application of Superconducting Technology to Power Transformers». IEEE Transactions on Power Apparatus and Systems. PAS-100 (7): 3398. doi:10.1109/TPAS.1981.316682. Arkivert fra originalen 1. september 2007.
EE-Reviewonline.com. «Steinmetz's Formula for Magnetic Hysteresis». Arkivert fra originalen 20. februar 2015. Besøkt 7. februar 2013.
«Understanding Transformer Noise» (PDF). FP. Arkivert fra originalen (PDF) 10. mai 2006. Besøkt 30. januar 2013.
Nailen, Richard (mai 2005). «Why We Must Be Concerned With Transformers». Electrical Apparatus. Arkivert fra originalen 29. april 2009.
EM 1110-2-3006 (1994). «Chapter 4 - Power Transformers» (PDF). Engineering and Design – Hydroelectric Power Plants Electrical Design. U.S. Army Corps of Engineers. s. 4-14-1. Arkivert fra originalen (PDF) 24. januar 2011.
Walling, Reigh (mai 2007). Distribution Transformer Thermal Behaviour and Aging in Local-Delivery Distribution Systems (PDF). 19th International Conference on Electricity Distribution. Paper 0720. Arkivert fra originalen (PDF) 12. mai 2014. Besøkt 11. februar 2013.
Hartley, William H. (2003). Analysis of Transformer Failures. 36th Annual Conference of the International Association of Engineering Insurers. s. 7 (fig. 6)7 (fig. 6). Arkivert fra originalen 20. oktober 2013. Besøkt 30. januar 2013.
Hartley, William H. (~2011). «An Analysis of Transformer Failures, Part 1 – 1988 through 1997». The Locomotive. Arkivert fra originalen 18. juni 2018. Besøkt 30. januar 2013.
Prevost, Thomas A.; m.fl. (november 2006). «Estimation of Insulation Life Based on a Dual Temperature Aging Model» (PDF). Weidmann. s. 1. Arkivert fra originalen (PDF) 20. oktober 2016. Besøkt 30. mars 2012.
Sen, P.K.; m.fl. (2011). «PSERC Pub. 11-02 Transformer Overloading and Assessment of Loss-of-Life for Liquid-Filled Transformers» (PDF). Power Systems Engineering Research Center, Arizona State University. Arkivert fra originalen (PDF) 6. januar 2014. Besøkt 11. januar 2013.
«ASTDR ToxFAQs for Polychlorinated Biphenyls». 2001. Arkivert fra originalen 28. desember 2009. Besøkt 10. juni 2007.
Figueroa, Elisa; m.fl. (januar–februar 2009). «Low Frequency Heating Field Dry-Out of a 750 MVA 500 kV Auto Transformer» (PDF). Electricity Today. Arkivert fra originalen (PDF) 7. januar 2012. Besøkt 28. februar 2012.
Lawhead, Larry (2006). «Three Phase Transformer Winding Configurations and Differential Relay Compensation» (PDF). Georgia Tech 60th Protective Relay Conference. s. 8–10. Arkivert fra originalen (PDF) 16. desember 2011. Besøkt 23. februar 2012.

weidmann-solutions.cn (Global: low place; Norwegian: low place)

Prevost, Thomas A.; m.fl. (november 2006). «Estimation of Insulation Life Based on a Dual Temperature Aging Model» (PDF). Weidmann. s. 1. Arkivert fra originalen (PDF) 20. oktober 2016. Besøkt 30. mars 2012.

wisc.edu (Global: 891^st place; Norwegian: 1,761^st place)

pserc.wisc.edu

Sen, P.K.; m.fl. (2011). «PSERC Pub. 11-02 Transformer Overloading and Assessment of Loss-of-Life for Liquid-Filled Transformers» (PDF). Power Systems Engineering Research Center, Arizona State University. Arkivert fra originalen (PDF) 6. januar 2014. Besøkt 11. januar 2013.

Transformator (Norwegian Wikipedia)

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kfki.hu (Global: low place; Norwegian: low place)

lokalhistoriewiki.no (Global: low place; Norwegian: 211th place)

mrt.ac.lk (Global: low place; Norwegian: low place)

elect.mrt.ac.lk

nas.edu (Global: low place; Norwegian: low place)

nve.no (Global: 2,844th place; Norwegian: 18th place)

publikasjoner.nve.no

osti.gov (Global: 2,098th place; Norwegian: 5,994th place)

pbs.org (Global: 260th place; Norwegian: 485th place)

schneider-electric.us (Global: low place; Norwegian: low place)

static.schneider-electric.us

si.edu (Global: 256th place; Norwegian: 396th place)

siarchives.si.edu

superpower-inc.com (Global: low place; Norwegian: low place)

termeszetvilaga.hu (Global: low place; Norwegian: low place)

ti.com (Global: 6,779th place; Norwegian: low place)

focus.ti.com

uiuc.edu (Global: 4,225th place; Norwegian: 4,212th place)

web.hep.uiuc.edu

uncp.edu.pe (Global: low place; Norwegian: low place)

unipv.it (Global: low place; Norwegian: low place)

ppp.unipv.it

uspto.gov (Global: 2,155th place; Norwegian: 3,170th place)

patft.uspto.gov

vias.org (Global: low place; Norwegian: low place)

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

weidmann-solutions.cn (Global: low place; Norwegian: low place)

wisc.edu (Global: 891st place; Norwegian: 1,761st place)

pserc.wisc.edu

adsabs.harvard.edu (Global: 14^th place; Norwegian: 78^th place)

aerospaceweb.org (Global: low place; Norwegian: 8,615^th place)

archive.org (Global: 6^th place; Norwegian: 26^th place)

cdc.gov (Global: 251^st place; Norwegian: 784^th place)

d-nb.info (Global: 281^st place; Norwegian: 37^th place)

doi.org (Global: 2^nd place; Norwegian: 6^th place)

du.edu (Global: 9,571^st place; Norwegian: 8,590^th place)

edisontechcenter.org (Global: low place; Norwegian: 5,366^th place)

freepatentsonline.com (Global: 7,823^rd place; Norwegian: low place)

fsu.edu (Global: 2,949^th place; Norwegian: 4,369^th place)

google.com (Global: 109^th place; Norwegian: 357^th place)

gpo.gov (Global: 1,819^th place; Norwegian: 4,981^st place)

iec.ch (Global: 6,187^th place; Norwegian: 3,569^th place)

ieee.org (Global: 912^th place; Norwegian: 1,358^th place)

lokalhistoriewiki.no (Global: low place; Norwegian: 211^th place)

nve.no (Global: 2,844^th place; Norwegian: 18^th place)

osti.gov (Global: 2,098^th place; Norwegian: 5,994^th place)

pbs.org (Global: 260^th place; Norwegian: 485^th place)

si.edu (Global: 256^th place; Norwegian: 396^th place)

ti.com (Global: 6,779^th place; Norwegian: low place)

uiuc.edu (Global: 4,225^th place; Norwegian: 4,212^th place)

uspto.gov (Global: 2,155^th place; Norwegian: 3,170^th place)

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

wisc.edu (Global: 891^st place; Norwegian: 1,761^st place)