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4. Chemical studies on the existence of extraterrestrial life. Ponnamperuma C; Honda Y; Navarro-González R J Br Interplanet Soc; 1992; 45():241-9. PubMed ID: 11537802 [TBL] [Abstract][Full Text] [Related]
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7. The windows of SETI--frequency and time in the search for extraterrestrial intelligence. Oliver BM Planet Rep; 1987; 7(6):23-5. PubMed ID: 11539057 [TBL] [Abstract][Full Text] [Related]
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17. [Which chemistry at the origins of life?]. Brack A C R Acad Sci Gen; 1994; 11(4):223-42. PubMed ID: 11540497 [No Abstract] [Full Text] [Related]
18. Life as a planetary phenomenon: the colonization of Mars. Margulis L; Guerrero R Microbiologia; 1995; 11():173-84. PubMed ID: 11539563 [TBL] [Abstract][Full Text] [Related]