Clifford, A. H. Semigroups containing minimal ideals. (English) Zbl 0038.01103 Am. J. Math. 70, 521-526 (1948). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Cited in 1 ReviewCited in 37 Documents Keywords:Group theory PDFBibTeX XMLCite \textit{A. H. Clifford}, Am. J. Math. 70, 521--526 (1948; Zbl 0038.01103) Full Text: DOI