RT Journal Article
SR Electronic
T1 News and Notes
JF Science
JO Science
FD American Association for the Advancement of Science
SP 522
OP 533
DO 10.1126/science.120.3118.522
VO 120
IS 3118
YR 1954
UL http://science.sciencemag.org/content/120/3118/522.abstract
AB