M. López-Corredoira, C. Allende Prieto, F. Garzón, H. Wang, C. Liu: Disk stars in the Milky Way detected beyond 25 kpc from its center. In: Astronomy & Astrophysics. Band612, April 2018, ISSN0004-6361, S.L8, doi:10.1051/0004-6361/201832880 (aanda.org [abgerufen am 25. November 2018]).
Samuil A. Kaplan: Extraterrestrial civilizations : problems of interstellar communikations. Jerusalem, 1971, keine ISBN, S. 59, online, abgerufen am 11. August 2011
D. H. Forgan: A numerical testbed for hypotheses of extraterrestrial life and intelligence. International Journal of Astrobiology, Vol. 8, Issue 2, S. 121–131, April 2009, bibcode:2009IJAsB...8..121F, arxiv:0810.2222.
M. Subotowicz: Interstellar communication by neutrino beams. Acta Astronautica, vol. 6, Jan.-Feb. 1979, S. 213–220, bibcode:1979AcAau...6..213S; J. G. Learned, u. a.: Timing Data Communication with Neutrinos – a New Approach to SETI, bibcode:1994QJRAS..35..321L; J. G. Learned: Galactic Neutrino Communication. arxiv:0805.2429.
centauri-dreams.org: SETI and Detectability – Understanding Leakage Radiation, abgerufen am 8. Juni 2011; Alexander L. Zaitsev: Detection Probability of Terrestrial Radio Signals by a Hostile Super-civilization. arxiv:0804.2754; Eavesdropping on Radio Broadcasts from Galactic Civilizations with Upcoming Observatories for Redshifted 21 cm Radiation. arxiv:astro-ph/0610377; Carl Sagan et al.: A search for life on Earth from the Galileo spacecraft. Nature, Volume 365, Issue 6448, S. 715–721 (1993), bibcode:1993Natur.365..715S; Seth Shostak: Limits on interstellar messages. Acta Astronautica, Vol. 68, Issues 3–4, Feb./März 2011, S. 366–371: However, the strength of TV signals at light-years’ distance will be low, given the small gain of the transmitting antennas. For VHF broadcasts, the maximum effective radiated power is between 100 and 300 Kw, and for UHF is 5 MW. At 100 light-years, these will produce signals of flux density no more than 10−33–10−31 W/m²-Hz, even in the very narrow parts of the band where the carriers are located. S. 366.
Jacob Haqq-Misra, u. a.: On the likelihood of non-terrestrial artifacts in the Solar System. Acta Astronautica, Volume 72, 2012, S. 15–20, arxiv:1111.1212; Scot L. Stride: An Instrument-Based Method to Search for Extraterrestrial Interstellar Robotic Probes. Journal of the British Interplanetary Society, 54, 2-13, 2001
Clement Vidal: The Beginning and the End: The Meaning of Life in a Cosmological Perspective. Springer, Cham 2014, ISBN 978-3-319-05061-4, S. 213ff.; arxiv:1301.1648
Nikolai S. Kardaschow: Transmission of Information by extraterrestrial civilizations. in: Soviet Astronomy-AJ, vol. 8, no. 2, Sept.-Oct. 1964 PDF;
Claudio Maccone: The Narrowband Assumption in SETI. In: ebender: Deep space flight and communications. Springer, Berlin 2009, ISBN 978-3-540-72942-6, S. 60 ff.; eingeschränkte Vorschau in der Google-Buchsuche.
bigear.org
Giuseppe Cocconi, Philip Morrison: Searching for Interstellar Communications. In: Nature, Band 184, Nr. 4690, S. 844–846, 19. September 1959, PDF, repro@bigear (Abgerufen am 21. Juni 2010)
C. D. Tremblay, S. J. Tingay: A SETI survey of the Vela region using the Murchison Widefield Array: Orders of magnitude expansion in search space. In: Publications of the Astronomical Society of Australia. 37. Jahrgang, 7. September 2020, ISSN1323-3580, doi:10.1017/pasa.2020.27 (englisch, cambridge.org).
ebooks.cambridge.org
Michael D. Papagiannis: The Search for Extraterrestrial Technologies in our Solar System.bibcode:1995ASPC...74..425P & Are we alone, or could They be in the Asteroidbeltbibcode:1978QJRAS..19..277P; Michael D. Papagiannis: A Search for Tritium Sources in Our Solar System May Reveal the Presence of Space Probes from Other Stellar Systems. In: Michael H. Hart u. a.: Extraterrestrials – Where Are They? Cambridge University Press, Cambridge 1995, S. 103–107, preview, cambridge.org, abgerufen am 4. März 2011.
centauri-dreams.org: SETI and Detectability – Understanding Leakage Radiation, abgerufen am 8. Juni 2011; Alexander L. Zaitsev: Detection Probability of Terrestrial Radio Signals by a Hostile Super-civilization. arxiv:0804.2754; Eavesdropping on Radio Broadcasts from Galactic Civilizations with Upcoming Observatories for Redshifted 21 cm Radiation. arxiv:astro-ph/0610377; Carl Sagan et al.: A search for life on Earth from the Galileo spacecraft. Nature, Volume 365, Issue 6448, S. 715–721 (1993), bibcode:1993Natur.365..715S; Seth Shostak: Limits on interstellar messages. Acta Astronautica, Vol. 68, Issues 3–4, Feb./März 2011, S. 366–371: However, the strength of TV signals at light-years’ distance will be low, given the small gain of the transmitting antennas. For VHF broadcasts, the maximum effective radiated power is between 100 and 300 Kw, and for UHF is 5 MW. At 100 light-years, these will produce signals of flux density no more than 10−33–10−31 W/m²-Hz, even in the very narrow parts of the band where the carriers are located. S. 366.
Harald Zaun: SETI – die wissenschaftliche Suche nach außerirdischen Zivilisationen – Chancen, Perspektiven, Risiken. Heise, Hannover 2010, ISBN 978-3-936931-57-0, S. 254;
centauri-dreams.org: San Marino: Assessing Active SETI’s Risk, abgerufen am 22. Februar 2011
R. Zubrin: Detection of Extraterrestrial Civilizations via the Spectral Signature of Advanced Interstellar Spacecraftbibcode:1995ASPC...74..487Z; centauri-dreams.org: To Detect a Starship, abgerufen am 21. August 2012; Michael J. Harris: On the detectability of antimatter propulsion spacecraft. Astrophysics and Space Science, vol. 123, no. 2, June 1986, S. 297–303, bibcode:1986Ap&SS.123..297H
seti-italia.cnr.it: SETI Italia, abgerufen am 24. Februar 2011;
Harald Zaun: SETI – die wissenschaftliche Suche nach außerirdischen Zivilisationen – Chancen, Perspektiven, Risiken. Heise, Hannover 2010, ISBN 978-3-936931-57-0, S. 282
coseti.org
Sebastian von Hoerner: Sind wir allein? – SETI und das Leben im All. Beck, München 2003, ISBN 3-406-49431-5, Kap. 7.8 Es muß nicht immer Radio sein. S. 187–194; SPIE Proceedings of Int. Conferences on Optical SETI 1, 2,3
Stuart A. Kingsley: The search for extraterrestrial intelligence (SETI) in the optical spectrum III. 3rd SPIE international OSETI conference, Proceedings of the Society for Optical Engineering, Bellingham, Wash. 2001, ISBN 0-8194-3951-7, abgerufen am 4. Oktober 2011;
Seth Shostak: The Future of SETI skyandtelescope.com, abgerufen am 14. April 2012.
Carl Sagan: On the detectivity of advanced galactic civilizations. Icarus, Vol. 19, Issue 3, Juli 1973, S. 350–352, doi:10.1016/0019-1035(73)90112-7, bibcode:1973Icar...19..350S; William I. Newman et al.: Galactic civilizations – Population dynamics and interstellar diffusion Icarus, vol. 46, Juni 1981, S. 293–327, abstract (Memento vom 22. Februar 2014 im Internet Archive); J. G. Kreifeldt: A Formulation for the Number of Communicative Civilizations in the Galaxy; Icarus, vol. 14, S. 419, bibcode:1971Icar...14..419K
M. López-Corredoira, C. Allende Prieto, F. Garzón, H. Wang, C. Liu: Disk stars in the Milky Way detected beyond 25 kpc from its center. In: Astronomy & Astrophysics. Band612, April 2018, ISSN0004-6361, S.L8, doi:10.1051/0004-6361/201832880 (aanda.org [abgerufen am 25. November 2018]).
GL-SETI (gravitational lensing SETI) – Receiving far ETI signals focused by the gravity of other stars. in: Claudio Maccone: Deep space flight and communications. Springer, Berlin 2009, ISBN 978-3-540-72942-6, S. 71–84;
Claudio Maccone: The gravitational lenses of alpha centauri a, b, c and of barnard's star. Acta Astronautica, Volume 47, Issue 12, Dezember 2000, S. 885–897, doi:10.1016/S0094-5765(00)00138-7
„In less than a year’s time (October3rd,1993), the NASA SETI Program was dismissed by the US Congress, officially ‘‘to save money’’, but probably for hidden political, philosophical and religious motivations.“ in: Acta Astronautica, Vol. 67, Issues 11-12, 2010, S. 1338–1339, Claudio Marccone: Preface-Welcome to participants, Special Issue on Searching for Life Signatures, doi:10.1016/j.actaastro.2010.07.018
C. D. Tremblay, S. J. Tingay: A SETI survey of the Vela region using the Murchison Widefield Array: Orders of magnitude expansion in search space. In: Publications of the Astronomical Society of Australia. 37. Jahrgang, 7. September 2020, ISSN1323-3580, doi:10.1017/pasa.2020.27 (englisch, cambridge.org).
Stuart Bowyer u. a.: The Berkeley parasitic SETI Program. Icarus, Vol. 53, Issue 1, Januar 1983, S. 147–155, doi:10.1016/0019-1035(83)90028-3
Robert A. Freitas, Jr., Francisco Valdes: A search for natural or artificial objects located at the Earth-Moon libration points. Icarus, Vol. 42, Issue 3, Juni 1980, S. 442–447, doi:10.1016/0019-1035(80)90106-2, repro@rfreitas.com; The search for extraterrestrial artifacts (SETA), Acta Astronautica, Vol. 12, Issue 12, Dezember 1985, S. 1027–1034, doi:10.1016/0094-5765(85)90031-1, repro@rfreitas.com
Beatriz Villarroel, Inigo Imaz, Josefine Bergstedt: OUR SKY NOW AND THEN: SEARCHES FOR LOST STARS AND IMPOSSIBLE EFFECTS AS PROBES OF ADVANCED EXTRATERRESTRIAL CIVILIZATIONS. In: The Astronomical Journal, 152, 2016. doi:10.3847/0004-6256/152/3/76
Manasvi Lingam, Abraham Loeb: Fast Radio Bursts from Extragalactic Light Sails. In: The Astrophysical Journal Letters, 837, 2017. doi:10.3847/2041-8213/aa633e
Ernst Fasan: Legal consequences of a SETI detection. In: Acta Astronautica. Volume 42, Issues 10-12, May-June 1998, S. 677–679, doi:10.1016/S0094-5765(98)00025-3 & Discovery of ETI: Terrestrial and extraterrestrial legal implications. Volume 21, Issue 2, February 1990, S. 131–135; ebender: Relations with alien intelligences: the scientific basis of metalaw. Berlin Verl., Berlin 1970, keine ISBN
Iván Almár: SETI and astrobiology – The Rio Scale and the London Scale. Acta Astronautica, Vol. 69, Issues 9-10, November-December 2011, S. 899–904, doi:10.1016/j.actaastro.2011.05.036
XI. - Planets and Life around Other Stars. In: International Geophysics. 87. Jahrgang. Academic Press, 1. Januar 2004, S.592–608, doi:10.1016/S0074-6142(04)80025-1 (englisch).
Stephen H. Dole, Isaac Asimov: Planets for man – based on the RAND Corporation Research Study, Habitable planets for man. Random House, New York, 1964; Claudio Maccone: Mathematical SETI – statistics, signal processing, space missions. Springer, Berlin 2012, ISBN 978-3-642-27436-7, S. 111–119 @google books
Nikolai S. Kardaschow: Transmission of Information by extraterrestrial civilizations. in: Soviet Astronomy-AJ, vol. 8, no. 2, Sept.-Oct. 1964 PDF;
Claudio Maccone: The Narrowband Assumption in SETI. In: ebender: Deep space flight and communications. Springer, Berlin 2009, ISBN 978-3-540-72942-6, S. 60 ff.; eingeschränkte Vorschau in der Google-Buchsuche.
Claudio Maccone: Interstellar Radio Links Enabled by Gravitational Lenses of the Sun and Stars.S. 177–213, in: Douglas A. Vakoch: Communication with extraterrestrial intelligence. SUNY Press, Albany 2011, ISBN 978-1-4384-3793-4; eingeschränkte Vorschau in der Google-Buchsuche
Brian MacConnell: Beyond contact – a guide to SETI and communicating with Alien civilizations. O’Reilly, Beijing 2001, ISBN 0-596-00037-5, „Leakage radiation.“ S. 185ff: „This leakage radiation, though it may be meaningless to anyone, who intercepts it, will nonetheless betray our presence to any advanced civilization with equal or better radio reception capability within a range of about 60 light years.“ eingeschränkte Vorschau in der Google-Buchsuche
Monte Ross: Interstellar Probes in: ebender: The search for extraterrestrials – intercepting alien signals. Springer, New York, 2009, ISBN 978-0-387-73453-8, S. 137ff. „In the 1920s Earth became a source of signals from AM radio stations. The energy weak as it is, could be picked up by such a probe anywhere within a radius of 80 lightyears.“ eingeschränkte Vorschau in der Google-Buchsuche
nhao.jp: Projekt SAZANKA;
Shin-va Narusawa et al.: Project SAZANKA:Multisite and Multifrequency Simultaneous SETI Observations in Japan. in: Douglas A. Vakoch: Communication with extraterrestrial intelligence. University Presses Marketing, Albany 2011, ISBN 978-1-4384-3793-4; S. 109–124; eingeschränkte Vorschau in der Google-Buchsuche
Claudio Maccone: Deep space flight and communications. Springer, Berlin 2009, ISBN 978-3-540-72942-6, S. 83 ff.; eingeschränkte Vorschau in der Google-Buchsuche;
Michael A.G. Michaud: Contact with Alien Civilizations – Our Hopes and Fears about Encountering Extraterrestrials. Copernicus Books, New York 2007, ISBN 978-0-387-28598-6, S. 135–138
James F. Strange: Observations from Archaeology and Religious Studies on First Contact and ETI Evidence.eingeschränkte Vorschau in der Google-Buchsuche in: Diana G. Tumminia: Alien Worlds – Social and Religious Dimensions of Extraterrestrial Contact. Syracuse Univ. Press, Syracuse 2007, ISBN 978-0-8156-0858-5, S. 239–248;
daviddarling.info: 2. Exoarcheology 101 (Memento vom 25. März 2010 im Internet Archive), abgerufen am 28. Oktober 2010.
Carl Sagan: On the detectivity of advanced galactic civilizations. Icarus, Vol. 19, Issue 3, Juli 1973, S. 350–352, doi:10.1016/0019-1035(73)90112-7, bibcode:1973Icar...19..350S; William I. Newman et al.: Galactic civilizations – Population dynamics and interstellar diffusion Icarus, vol. 46, Juni 1981, S. 293–327, abstract (Memento vom 22. Februar 2014 im Internet Archive); J. G. Kreifeldt: A Formulation for the Number of Communicative Civilizations in the Galaxy; Icarus, vol. 14, S. 419, bibcode:1971Icar...14..419K
Milan M. Ćirković: The Temporal Aspect of the Drake Equation and SETI. Astrobiology, Vol. 4, Issue 2, S. 225–231, Juni 2004, bibcode:2004AsBio...4..225C.
D. H. Forgan: A numerical testbed for hypotheses of extraterrestrial life and intelligence. International Journal of Astrobiology, Vol. 8, Issue 2, S. 121–131, April 2009, bibcode:2009IJAsB...8..121F, arxiv:0810.2222.
P. V. Makovetskii: Structure of call signals of extraterrestrial civilizations. Soviet Astronomy, Vol. 20, S. 123, 1976, bibcode:1976SvA....20..123M.
Michael Lachmann u. a.: The physical limits of communication or Why any sufficiently advanced technology is indistinguishable from noise. American Journal of Physics, Vol. 72, Issue 10, S. 1290–1293 (2004), bibcode:2004AmJPh..72.1290L.
R.S. Dixon: A modest all-sky search for narrowband radio radiation near the 21-cm hydrogen line, bibcode:1977Icar...30..267D; G. L. Verschuur: A Search for Narrow Band 21-cm Wavelength Signals from Ten Nearby Stars, Icarus, vol. 19, S. 329, 1973, bibcode:1973Icar...19..329V.
M. A. Stull: International Legal Protection of the „Water Hole“ Frequency Band for a Search of Extraterrestrial Intelligent Life.bibcode:1975BAAS....7R.440S; 2.1.6.3 The Search for Extraterrestrial Intelligence, in: Handbook of Frequency Allocations and Spectrum Protection for Scientific Uses. 2007, nap.edu, abgerufen am 15. Oktober 2012.
M. Subotowicz: Interstellar communication by neutrino beams. Acta Astronautica, vol. 6, Jan.-Feb. 1979, S. 213–220, bibcode:1979AcAau...6..213S; J. G. Learned, u. a.: Timing Data Communication with Neutrinos – a New Approach to SETI, bibcode:1994QJRAS..35..321L; J. G. Learned: Galactic Neutrino Communication. arxiv:0805.2429.
centauri-dreams.org: SETI and Detectability – Understanding Leakage Radiation, abgerufen am 8. Juni 2011; Alexander L. Zaitsev: Detection Probability of Terrestrial Radio Signals by a Hostile Super-civilization. arxiv:0804.2754; Eavesdropping on Radio Broadcasts from Galactic Civilizations with Upcoming Observatories for Redshifted 21 cm Radiation. arxiv:astro-ph/0610377; Carl Sagan et al.: A search for life on Earth from the Galileo spacecraft. Nature, Volume 365, Issue 6448, S. 715–721 (1993), bibcode:1993Natur.365..715S; Seth Shostak: Limits on interstellar messages. Acta Astronautica, Vol. 68, Issues 3–4, Feb./März 2011, S. 366–371: However, the strength of TV signals at light-years’ distance will be low, given the small gain of the transmitting antennas. For VHF broadcasts, the maximum effective radiated power is between 100 and 300 Kw, and for UHF is 5 MW. At 100 light-years, these will produce signals of flux density no more than 10−33–10−31 W/m²-Hz, even in the very narrow parts of the band where the carriers are located. S. 366.
Conference on Extraterrestrial Civilizations. Soviet Astronomy, Vol. 9, S. 369 bibcode:1965SvA.....9..369G
Michael A.G. Michaud: Contact with Alien Civilizations – Our Hopes and Fears about Encountering Extraterrestrials. Copernicus Books, New York 2007, ISBN 978-0-387-28598-6; Sending our own signals – Active SETI, S. 49–53; Yvan Dutil, Stephane Dumas: Active SETI – Targets Selection and Message Conception.bibcode:1998AAS...193.9710D, PDF (Memento vom 13. Mai 2015 im Internet Archive), abgerufen am 13. Mai 2016.
Iván Almár, Paul H. Shuch: The San Marino Scale: A new analytical tool for assessing transmission risk. Acta Astronautica, Vol. 60, Issue 1, S. 57–59, bibcode:2007AcAau..60...57A
S. J. Dick: The search for extraterrestrial intelligence and the NASA High Resolution Microwave Survey (HRMS) – Historical perspectives.bibcode:1993SSRv...64...93D.
Michael D. Papagiannis: The Search for Extraterrestrial Technologies in our Solar System.bibcode:1995ASPC...74..425P & Are we alone, or could They be in the Asteroidbeltbibcode:1978QJRAS..19..277P; Michael D. Papagiannis: A Search for Tritium Sources in Our Solar System May Reveal the Presence of Space Probes from Other Stellar Systems. In: Michael H. Hart u. a.: Extraterrestrials – Where Are They? Cambridge University Press, Cambridge 1995, S. 103–107, preview, cambridge.org, abgerufen am 4. März 2011.
R. Zubrin: Detection of Extraterrestrial Civilizations via the Spectral Signature of Advanced Interstellar Spacecraftbibcode:1995ASPC...74..487Z; centauri-dreams.org: To Detect a Starship, abgerufen am 21. August 2012; Michael J. Harris: On the detectability of antimatter propulsion spacecraft. Astrophysics and Space Science, vol. 123, no. 2, June 1986, S. 297–303, bibcode:1986Ap&SS.123..297H
Michael Michaud: Contact with Alien Civilizations – Our Hopes and Fears about Encountering Extraterrestrials. Springer, Berlin 2006, ISBN 0-387-28598-9;
Seth G. Shostak et al.: Immediate Reaction Plan: A Strategy for Dealing with a SETI Detection.bibcode:2000ASPC..213..635S
M. A. Stull: International Legal Protection of the „Water Hole“ Frequency Band for a Search of Extraterrestrial Intelligent Life.bibcode:1975BAAS....7R.440S; 2.1.6.3 The Search for Extraterrestrial Intelligence, in: Handbook of Frequency Allocations and Spectrum Protection for Scientific Uses. 2007, nap.edu, abgerufen am 15. Oktober 2012.
Robert Dixon: Project Cyclops: The Greatest Radio Telescope Never Built. in: Shuch 2011, S. 39ff.; seti.berkeley.edu: PROJECT OASIS (Memento vom 23. April 2013 im Internet Archive) (PDF, ca. 30 MB); NASA-TM-84738, abgerufen am 20. Juli 2012.
Giuseppe Cocconi, Philip Morrison: Searching for Interstellar Communications. In: Nature, Band 184, Nr. 4690, S. 844–846, 19. September 1959, PDF, repro@bigear (Abgerufen am 21. Juni 2010)
nhao.jp: Projekt SAZANKA;
Shin-va Narusawa et al.: Project SAZANKA:Multisite and Multifrequency Simultaneous SETI Observations in Japan. in: Douglas A. Vakoch: Communication with extraterrestrial intelligence. University Presses Marketing, Albany 2011, ISBN 978-1-4384-3793-4; S. 109–124; eingeschränkte Vorschau in der Google-Buchsuche
nmspacemuseum.org: Andrew G. Haley; P. M. Sterns: Metalaw and relations with intelligent beings revisited. Space Policy, Vol. 20, Issue 2, Mai 2004, S. 123–130.
Robert A. Freitas, Jr., Francisco Valdes: A search for natural or artificial objects located at the Earth-Moon libration points. Icarus, Vol. 42, Issue 3, Juni 1980, S. 442–447, doi:10.1016/0019-1035(80)90106-2, repro@rfreitas.com; The search for extraterrestrial artifacts (SETA), Acta Astronautica, Vol. 12, Issue 12, Dezember 1985, S. 1027–1034, doi:10.1016/0094-5765(85)90031-1, repro@rfreitas.com
Stuart A. Kingsley: The search for extraterrestrial intelligence (SETI) in the optical spectrum III. 3rd SPIE international OSETI conference, Proceedings of the Society for Optical Engineering, Bellingham, Wash. 2001, ISBN 0-8194-3951-7, abgerufen am 4. Oktober 2011;
Seth Shostak: The Future of SETI skyandtelescope.com, abgerufen am 14. April 2012.
H. Paul Shuch: Project Ozma – The Birth of Observational SETI. In: ebender: Searching for extraterrestrial intelligence – SETI past, present, and future. Springer, Berlin 2011, ISBN 978-3-642-13195-0, S. 13 ff., pdf preview
Ronald D. Ekers: Seti 2020 – a roadmap for the search for extraterrestrial intelligence. Seti Press, Mountain View, Calif. 2002, ISBN 0-9666335-3-9; SETI Observations (Memento vom 31. Mai 2012 im Internet Archive) seti.org (abgerufen am 19. April 2012)
Carl Sagan: On the detectivity of advanced galactic civilizations. Icarus, Vol. 19, Issue 3, Juli 1973, S. 350–352, doi:10.1016/0019-1035(73)90112-7, bibcode:1973Icar...19..350S; William I. Newman et al.: Galactic civilizations – Population dynamics and interstellar diffusion Icarus, vol. 46, Juni 1981, S. 293–327, abstract (Memento vom 22. Februar 2014 im Internet Archive); J. G. Kreifeldt: A Formulation for the Number of Communicative Civilizations in the Galaxy; Icarus, vol. 14, S. 419, bibcode:1971Icar...14..419K
Michael A.G. Michaud: Contact with Alien Civilizations – Our Hopes and Fears about Encountering Extraterrestrials. Copernicus Books, New York 2007, ISBN 978-0-387-28598-6; Sending our own signals – Active SETI, S. 49–53; Yvan Dutil, Stephane Dumas: Active SETI – Targets Selection and Message Conception.bibcode:1998AAS...193.9710D, PDF (Memento vom 13. Mai 2015 im Internet Archive), abgerufen am 13. Mai 2016.
Robert Dixon: Project Cyclops: The Greatest Radio Telescope Never Built. in: Shuch 2011, S. 39ff.; seti.berkeley.edu: PROJECT OASIS (Memento vom 23. April 2013 im Internet Archive) (PDF, ca. 30 MB); NASA-TM-84738, abgerufen am 20. Juli 2012.
James F. Strange: Observations from Archaeology and Religious Studies on First Contact and ETI Evidence.eingeschränkte Vorschau in der Google-Buchsuche in: Diana G. Tumminia: Alien Worlds – Social and Religious Dimensions of Extraterrestrial Contact. Syracuse Univ. Press, Syracuse 2007, ISBN 978-0-8156-0858-5, S. 239–248;
daviddarling.info: 2. Exoarcheology 101 (Memento vom 25. März 2010 im Internet Archive), abgerufen am 28. Oktober 2010.
M. López-Corredoira, C. Allende Prieto, F. Garzón, H. Wang, C. Liu: Disk stars in the Milky Way detected beyond 25 kpc from its center. In: Astronomy & Astrophysics. Band612, April 2018, ISSN0004-6361, S.L8, doi:10.1051/0004-6361/201832880 (aanda.org [abgerufen am 25. November 2018]).
C. D. Tremblay, S. J. Tingay: A SETI survey of the Vela region using the Murchison Widefield Array: Orders of magnitude expansion in search space. In: Publications of the Astronomical Society of Australia. 37. Jahrgang, 7. September 2020, ISSN1323-3580, doi:10.1017/pasa.2020.27 (englisch, cambridge.org).