TY  - RPRT
TI  - Life on Mars? The Viking labeled release experiment.
AU  - G V Levin
AU  - P A Straat
PY  - 1977
DO  - 10.1016/0303-2647(77)90026-0
UR  - https://pubmed.ncbi.nlm.nih.gov/20180/
ID  - 20180
ER  -