Birkhoff, Garrett Metric foundations of geometry. (English) Zbl 0060.32705 Proc. Natl. Acad. Sci. USA 27, 402-406 (1941). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Cited in 3 Documents Keywords:foundations of geometry, noneuclidean geometry PDFBibTeX XMLCite \textit{G. Birkhoff}, Proc. Natl. Acad. Sci. USA 27, 402--406 (1941; Zbl 0060.32705) Full Text: DOI