Gałuszka, Jan Lattices of classes of groupoids with one-sided quasigroup conditions. (English) Zbl 1209.20067 Algebra Discrete Math. 2010, No. 1, 31-40 (2010). MSC: 20N02 20N05 08B15 05B15 08A30 08A40 08A62 PDFBibTeX XMLCite \textit{J. Gałuszka}, Algebra Discrete Math. 9, No. 1, 31--40 (2010; Zbl 1209.20067)
Gałuszka, Jan Codes of groupoids with one-sided quasigroup conditions. (English) Zbl 1199.20126 Algebra Discrete Math. 2009, No. 2, 27-44 (2009). MSC: 20N02 20N05 PDFBibTeX XMLCite \textit{J. Gałuszka}, Algebra Discrete Math. 2009, No. 2, 27--44 (2009; Zbl 1199.20126)