1940/02/15 by Hassler Whitney · 4 citations
Engineering · Mathematics · #Computer science #Material Science and Thermodynamics #Mathematics and Applications
paper · doi:10.1073/pnas.26.2.148
crossref issued 1940/02/15 · crossref published 1940/02/15 · crossref published-online 1940/02/15 · crossref published-print 1940/02/15 · openalex publication_date 1940/02/15 · crossref created 2006/05/30 · crossref deposited 2022/04/13 · openalex created_date 2025/10/10 · crossref indexed 2026/06/10 · openalex updated_date 2026/06/11