Urbanik, Kazimierz Remarks on congruence relations and weak automorphisms in abstract algebras. (English) Zbl 0204.33101 Colloq. Math. 20, 1-5 (1969). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page PDFBibTeX XMLCite \textit{K. Urbanik}, Colloq. Math. 20, 1--5 (1969; Zbl 0204.33101) Full Text: DOI