Friedrich Wilhelm Bessel

K. Lawrynowicz: Friedrich Wilhelm Bessel 1784-1846.
BirkhŠuser 1994, 310p. 3-7643-5113-6. DM 78.
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Gian Domenico Cassini

6683 Piero Bianucci: Gian Domenico Cassini. Nuovo Orione 1995/2, 36-42.

Anna Cassini: Gian Domenico Cassini. Comune di Perinaldo.
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Nikolaus Kopernikus

6737 Luigi Pepe: Le universitˆ di Copernico.
Ann. Univ. Ferrara 34 (1993), 123-141.
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Carl Sagan

9899 Christopher Chyba: Carl Sagan - teacher.
Planetary Report May/June 1997, 4-7.

K. Davidson: Carl Sagan - a life. Wiley 1999. 0-471-25286-7. $30.

9902 Frank Drake: Carl Sagan - scientist.
Planetary Report May/June 1997, 16-19.

9900 Hans Mark: Carl Sagan - spokesman for science.
Planetary Report May/June 1997, 8-10.

9901 Bruce Murray: Carl Sagan - partner in exploration.
Planetary Report May/June 1997, 11-15.

William Poundstone: Carl Sagan - a life in the cosmos.
Holt 1999. 0-80505766-8. $30.

9226 Corey Powell: Carl Sagan (1934-1996).
Scientific American December 1996, ...

9228 Norma Quarles: Carl Sagan dies at 62. CNN, Internet 1996.

9903 Wyn Wachhorst: Carl Sagan - visionary.
Planetary Report May/June 1997, 22.

9227 ZZ: Carl Sagan, Cornell astronomer, dies today (Dec. 20) in Seattle.
Internet 1996.
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David Schramm

11405 David Ehrenstein: Astrophysicist dies in plane crash.
Science 2 January 1998, 22.

5697 Dennis Overbye: Das Echo des Urknalls. Knaur 1993.
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Dennis W. Sciama (1926-1999)

13245 Fabio Pagan: Dennis W. Sciama, maestro di cosmologia.
Le Scienze Febbraio 2000, 17-19.
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Eugene Shoemaker

Susan Kieffer: Eugene Shoemaker (1928-1997).
Science 8 August 1997, 776-777.