9208 J. Roger Angel/Neville Woolf: Die Suche nach Leben auf fernen
Planeten. Spektrum 1996/6, 90-96.

11476 William Sims Bainbridge: Extraterrestrial tales. Review of
the book "UFO crash at Roswell" by Saler/Ziegler/Moore.
Science 30 January 1998, 671.

12803 Max Bernstein/Scott Sandford/Louis Allamandola: Kamen die Zutaten
der Ursuppe aus dem All? Spektrum 1999/10, 26-35.
In kalten interstellaren Wolken bilden sich komplexe organische Moleku''le.

15105 David Blake/Peter Jenniskens: Kosmisches Eis - Wiege des Lebens?
Spektrum 2001/10, 28-34.

9440 Ray Bradbury: Our Martian destiny.
Planetary Report January/February 1997, 22.

Mark Carlotto: The Martian enigmas - a closer look. The face, pyramids,
and other unusual objects on Mars.
North Atlantic 1997. 1-55643242-9. $19.

B. Carter: [Intelligent species are currently being formed in the universe 
at a uniform rate.] Phil. Trans. Royal Soc. A 310 (1983), 347-363.

9438 Carol Cleland: Standard of evidence - how high for ancient life on Mars?
Planetary Report January/February 1997, 20-21.

14862 Ian Crawford: Ist da draus''en wer? Spektrum 2000/11, 32-38.

Erich von Da''niken: Kontakt mit dem Universum.
Markt & Technik 1995, CD. Mit 3-D-Brille. 3-8272-0029-6. DM 99.

17571 Erich von Däniken: Auf den Spuren der Allmächtigen. Goldmann 1995, 190p. Eur 9.

14143 Erich von Däniken: Im Namen von Zeus. Goldmann 1998.
The author's style has even worsened, but some facts and arguments are
indeed stunning.

17570 Erich von Däniken: Die Götter waren Astronauten! Goldmann 2003, 290p. Eur 9.

Christian De Duve: Aus Staub geboren. Leben als kosmische Zwangs-
laeufigkeit. Spektrum 1995, 540p. 3-86025-352-2. DM 58.

L. Doyle (ed.): Circumstellar habitable zones. Travis House 1996.

P. Ehrenfreund/S. Charnley: Organic molecules in the interstellar
medium, comets and meteorites - a voyage from dark clouds to early
Earth. Ann. Rev. Astron. Astrophys. 38 (2000), 427-...

8693 Giancarlo Favero: E' apparsa la vita sul pianeta Marte?
Il Cielo Novembre 1996, 33-38.

Johannes Fiebag: Sternentore. Sie sind hier - ausserirdische Praesenz
auf der Erde und im Sonnensystem. Langen-Mueller 1996, DM 30.

9904 Louis Friedman: The future of the Planetary Society.
Planetary Report May/June 1997, 23-25.

11761 Everett Gibson/David McKay/Kathie Thomas-Keprta/Christopher Romanek:
Lebensspuren vom Mars? Spektrum 1998/2, 71-77.

Donald Goldsmith: Worlds unnumbered. University Science Press 1997.

Donald Goldsmith: The hunt for life on Mars. Dutton 1997. 0-52594336-6. $25.

5291 J. Richard Gott: Implications of the Copernican principle for our 
future prospects. Nature 363 (1993), 315-319. Rather interesting.

Jean Heidmann: Extraterrestrial intelligence. 240p. $25.

R. Hennessey: Worlds without end. The historic search for extraterrestrial
life. Tempus 1999, 160p. 0-7524-1450-X. $30.

13350 Robert Irion: The science of astrobiology takes shape.
Science 28 April 2000, 603-605.

9436 Bruce Jakovsky: Laying out the evidence - the case for life on Mars.
Planetary Report January/February 1997, 12-17.

11463 A. Jull/C. Courtney/D. Jeffrey/J. Beck: Isotopic evidence for a
terrestrial source of organic compounds found in Martian meteorites
Allan Hills 84001 and Elephant Moraine 79001.
Science 16 January 1998, 366-369.

8437 Jocelyn Kaiser: 2003 is earliest to retrieve samples.
Science 23 August 1996, 1040-1041. On NASA's mars mission programs.

James Kasting/Owen Toon/James Pollack: Die Entwicklung des Klimas auf 
erdaehnlichen Planeten. Spektrum 1988/4, 46-.

11462 Jeffrey Bada/Daniel Glavin/Gene McDonald/Luann Becker: A search for
endogenous amino acids in Martian meteorite ALH84001.
Science 16 January 1998, 362-365.

5293 Jacques Laskar: Der Mond und die Stabilitaet des Erdklimas.
Spektrum 1993/9, 48-55. The author thinks that a planet with life should 
have a moon similar to the earth's moon and that therefore the probability 
for extraterrestrial life is much lower than now generally accepted.

11880 Andrew Lawler: Astrobiology institute picks partner.
Science 29 May 1998, 1338.

13391 Andrew Lawler: Goldin shakes up NASA's life sciences program.
Science 12 May 2000, 938-939.

14863 Andrew Lepage: Wo sie versteckt sein ko''nnten.
Spektrum 2000/11, 34-35.

Ernst Mayr: Lohnt sich die Suche nach extraterrestrischer Intelligenz?
Naturwiss. Rundschau 45/7 (1992), 264-266.

Ernst Mayr: Does it pay to acquire high intelligence?
Persp. Biol. Med. 1994, 150-154.

7993 Ernst Mayr/Carl Sagan: The search for extraterrestrial intelligence.
Scientific quest or hopeful folly? Planetary Report May/June 1996, 4-13.

13354 Christopher McKay: All alone after all? Science 28 April 2000, 625.
Review of the book "Rare Earth" by Ward and Brownlee.

9435 David Mittlefehldt: Uncovering Martians hidden among us - the source
of ALH84001. Planetary Report January/February 1997, 8-11.

2407 National Research Council: The search for life's origins.
Nationa Academy Press  1990. ISBN 0-309-04246-1.

Barry Parker: Alien life - the search for extraterrestrials and beyond.
Plenum 1998. 0-30645795-4. $28.

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

9575 Uwe Reichert: Meteorit AlH84001 - Zeuge archaischer Lebensform auf
dem Mars? Spektrum 1996/9, 112-116.

Carl Sagan: The origin of life in a cosmic context.
Origins of Life 5 (1974), 497-505.

6677 Carl Sagan: The search for extraterrestrial life.
Scientific American October 1994, 70-77.

Carl Sagan: Pale blue dot - a vision of the human future in space.
Random House 1994.

Carl Sagan/Ann Druyan: Shadows of forgotten ancestors. A search for who
we are. Random House 1992.

Carl Sagan a.o.: A search for life on Earth from the Galileo spacecraft.
Nature 365/6648 (1993), 715-721.

Benson Saler/Charles Ziegler/Charles Moore: UFO crash at Roswell.
Smithsonian Instution 1997, 200p. 1-56098-751-0. $25.
"... an informative and stimulative book ..." (W. Bainbridge)

9434 Roberta Score: The thrill of the search - finding ALH84001.
Planetary Report January/February 1997, 5-7.

I. Shklovskii/Carl Sagan: Intelligent life in the universe.
Holden-Day 1966.

G. Simpson: The non-prevalence of humanoids.
Science 143 (1964), 769-775.

S. Stanley: An ecological theory for the origin of Homo.
Paleobiology 18 (1992), 237-257.

11918 Thomas Stephan: Doch keine Lebensspuren vom Mars?
Spektrum 1998/6, 22-25.

14864 George Swenson: Interstellare Verbindungen.
Spektrum 2000/11, 38-41.

9439 Rodney Taylor: Life on another world - can religion cope?
Planetary Report January/February 1997, 21.

Yervant Terzian/Elisabeth Bilson: Carl Sagan's universe.
Cambridge UP 1997. 0-521-57603-2. $23.

Peter Ward/Donald Brownlee: Rare Earth. Springer 2000, 360p.

6672 Steven Weinberg: Life in the universe.
Scientific American October 1994, 22-27. 

9437 Michael Yarus: Is the case persuasive? A skeptical view.
Planetary Report January/February 1997, 18-19.

Ben Zuckerman/Michael Hart: Extraterrestrials. Where are they?
Cambridge UP 1995, 240p. 0-521-44803-4 (pb). $20.

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

ZZ: Life in the universe. National Academy Press 2003. $18.

20280 ZZ: Neutrinos dienen vermutlich der Kommunikation zwischen
außerirdischen Zivilisationen. Internet 2008, 1p.