1971/12/01 by Walter M. Fitch · 5,643 citations
Agricultural and Biological Sciences · Engineering · Mathematics · #Combinatorics #Computer science #Course (navigation) #Engineering #Mathematics #Plant and animal studies #Topology (electrical circuits) #Tree (set theory)
paper · doi:10.2307/2412116
published in Systematic Zoology 20(4), 406 (Allen Press)
crossref issued 1971/12/01 · crossref published 1971/12/01 · crossref published-print 1971/12/01 · openalex publication_date 1971/12/01 · crossref created 2006/05/10 · crossref deposited 2018/04/18 · openalex created_date 2025/10/10 · crossref indexed 2026/08/01 · openalex updated_date 2026/08/03