142M471B3J 1 45316-02-7 1 7440-44-0 1 Biomarkers 1 Carbon 1 Carbon Dioxide 1 Carbon Isotopes 1 mehr ... Journal Article 1 NASA Discipline Exobiology 1 NASA Discipline Number 52-30 1 NASA Program Exobiology 1 Non-NASA Center 1 Research Support, U.S. Gov't, Non-P.H.S. 1 Research Support, U.S. Gov't, P.H.S. 1 Terpenes 1 lycopane weniger ...