Greenwood, Robert E.; Gleason, Andrew M. Combinatorial relations and chromatic graphs. (English) Zbl 0064.17901 Can. J. Math. 7, 1-7 (1955). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Cited in 5 ReviewsCited in 119 Documents Keywords:topology PDF BibTeX XML Cite \textit{R. E. Greenwood} and \textit{A. M. Gleason}, Can. J. Math. 7, 1--7 (1955; Zbl 0064.17901) Full Text: DOI OpenURL