Eilenberg, Samuel; McLane, Saunders Cohomology theory of abelian groups and homotopy theory. I. (English) Zbl 0037.39504 Proc. Natl. Acad. Sci. USA 36, 443-447 (1950). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Cited in 15 Documents Keywords:Topology PDFBibTeX XMLCite \textit{S. Eilenberg} and \textit{S. McLane}, Proc. Natl. Acad. Sci. USA 36, 443--447 (1950; Zbl 0037.39504) Full Text: DOI