Petrich, Mario A conjecture for varieties of completely regular semigroups. (English) Zbl 1505.20049 Math. Slovaca 69, No. 3, 541-556 (2019). MSC: 20M07 20M17 PDFBibTeX XMLCite \textit{M. Petrich}, Math. Slovaca 69, No. 3, 541--556 (2019; Zbl 1505.20049) Full Text: DOI
Petrich, Mario The translational hull of a normal cryptogroup. (English) Zbl 0807.20051 Math. Slovaca 44, No. 2, 245-262 (1994). Reviewer: G.I.Zhitomirskij (Saratov) MSC: 20M10 20M17 06A12 20M20 PDFBibTeX XMLCite \textit{M. Petrich}, Math. Slovaca 44, No. 2, 245--262 (1994; Zbl 0807.20051) Full Text: EuDML