JONSSON, B. The variety covering the variety of all modular lattices. MATHEMATICA SCANDINAVICA, [S. l.], v. 41, p. 5–14, 1977. DOI: 10.7146/math.scand.a-11698. Disponível em: https://www.mscand.dk/article/view/11698. Acesso em: 24 nov. 2024.