1970/09/01 by A. J. Hoffman, Alan J. Hoffman, Leonard Howes · 5 citations
Mathematics · #Graph theory and applications
paper · doi:10.1111/j.1749-6632.1970.tb56474.x
crossref issued 1970/09/01 · crossref published 1970/09/01 · crossref published-print 1970/09/01 · openalex publication_date 1970/09/01 · crossref created 2007/03/14 · crossref published-online 2009/07/16 · crossref deposited 2023/09/25 · crossref indexed 2025/09/25 · openalex created_date 2025/10/10 · openalex updated_date 2026/06/11