Koch, R. J.; McAuley, Louis F. Semigroups on trees. (English) Zbl 0102.02302 Fundam. Math. 50, 341-346 (1962). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Cited in 2 Documents Keywords:group theory PDFBibTeX XMLCite \textit{R. J. Koch} and \textit{L. F. McAuley}, Fundam. Math. 50, 341--346 (1962; Zbl 0102.02302) Full Text: DOI EuDML