Day, Alan A characterization of modularity for congruence lattices of algebras. (English) Zbl 0181.02302 Can. Math. Bull. 12, 167-173 (1969). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Cited in 1 ReviewCited in 77 Documents Keywords:general algebraic structures PDFBibTeX XMLCite \textit{A. Day}, Can. Math. Bull. 12, 167--173 (1969; Zbl 0181.02302) Full Text: DOI