Proc Natl Acad Sci U S A. 1942 Jun;28(6):254-8. doi: 10.1073/pnas.28.6.254.
Proceedings of the National Academy of Sciences of the United States of America
P R Halmos, H Samelson
PMID: 16578045 PMCID: PMC1078459 DOI: 10.1073/pnas.28.6.254
[No abstract available.]