Kambites, Mark Free adequate semigroups. (English) Zbl 1247.20066 J. Aust. Math. Soc. 91, No. 3, 365-390 (2011). Reviewer: Peter R. Jones (Milwaukee) MSC: 20M05 20M10 20M07 PDFBibTeX XMLCite \textit{M. Kambites}, J. Aust. Math. Soc. 91, No. 3, 365--390 (2011; Zbl 1247.20066) Full Text: DOI arXiv
Grätzer, G.; Sichler, J. Free products of Hopfian lattices. (English) Zbl 0288.06006 J. Aust. Math. Soc. 17, 234-245 (1974). MSC: 06B05 08B20 PDFBibTeX XMLCite \textit{G. Grätzer} and \textit{J. Sichler}, J. Aust. Math. Soc. 17, 234--245 (1974; Zbl 0288.06006) Full Text: DOI