1985/09/01 by Hans Freudenthal · 46 citations
Computer Science · Mathematics · #Algebraic geometry #Differential geometry #History and Theory of Mathematics #Hyperbolic geometry #Mathematics #Mathematics and Applications #Mathematics, Computing, and Information Processing #Projective geometry #Pure mathematics
paper · doi:10.1007/bf00233101
published in Geometriae Dedicata 19(1) (Springer Science and Business Media LLC)
crossref issued 1985/09/01 · crossref published 1985/09/01 · crossref published-print 1985/09/01 · openalex publication_date 1985/09/01 · crossref created 2004/09/07 · crossref deposited 2019/04/03 · openalex created_date 2025/10/10 · crossref indexed 2026/03/03 · openalex updated_date 2026/07/23