Hell, Pavol On some independence results in graph theory. (English) Zbl 0315.05113 Proc. Conf. algebr. Aspects Comb., Semin. Toronto 1975, 89-122 (1975). MSC: 05C25 05C20 20B25 PDFBibTeX XML
Hell, Pavol; Nešetřil, Jaroslav Groups and monoids of regular graphs (and of graphs with bounded degrees). (English) Zbl 0253.05126 Can. J. Math. 25, 239-251 (1973). MSC: 05C25 20B25 PDFBibTeX XMLCite \textit{P. Hell} and \textit{J. Nešetřil}, Can. J. Math. 25, 239--251 (1973; Zbl 0253.05126) Full Text: DOI
Hell, Pavol Groups and monoids of regular graphs (and of graphs with bounded degrees). (English) Zbl 0224.05111 Can. J. Math. (to appear). MSC: 05C25 20B25 PDFBibTeX XML