1967/11/01 by William F. Lindgren, W. F. Lindgren · 21 citations
Computer Science · Mathematics · #Advanced Graph Theory Research #Advanced Topology and Set Theory #Artificial intelligence #Class (philosophy) #Combinatorics #Computability, Logic, AI Algorithms #Computer science #Discrete mathematics #Mathematics
paper · doi:10.2307/2313617
published in The American Mathematical Monthly 74(9), 1087 (JSTOR)
crossref issued 1967/11/01 · crossref published 1967/11/01 · crossref published-print 1967/11/01 · openalex publication_date 1967/11/01 · crossref created 2006/04/23 · crossref deposited 2018/04/18 · openalex created_date 2025/10/10 · openalex updated_date 2025/11/06 · crossref indexed 2026/06/06