A P Calderón1. Show Affiliations » 1. DEPARTMENT OF MATHEMATICS, UNIVERSITY OF CHICAGO.
Abstract
Year: 1965 PMID: 16591273 PMCID: PMC301378 DOI: 10.1073/pnas.53.5.1092
Source DB: PubMed Journal: Proc Natl Acad Sci U S A ISSN: 0027-8424 Impact factor: 11.205