RT Journal Article SR Electronic T1 Man's Oxygen Reserves JF Science JO Science FD American Association for the Advancement of Science SP 1537 OP 1538 DO 10.1126/science.168.3939.1537 VO 168 IS 3939 A1 Broecker, Wallace S. YR 1970 UL http://science.sciencemag.org/content/168/3939/1537.abstract AB