1931/12/01 by Hans Freudenthal · 7 citations
Mathematics · Social Sciences · #Art #Humanities #Mathematics #Sociology and Education Studies
paper · doi:10.1007/bf01174375
crossref issued 1931/12/01 · crossref published 1931/12/01 · crossref published-print 1931/12/01 · openalex publication_date 1931/12/01 · crossref created 2005/02/17 · crossref deposited 2019/05/01 · openalex created_date 2025/10/10 · crossref indexed 2026/06/04 · openalex updated_date 2026/07/23