JÓNSSON, B. Modular lattices and Desargues’ theorem. MATHEMATICA SCANDINAVICA, [S. l.], v. 2, p. 294–313, 1954. DOI: 10.7146/math.scand.a-10416. Disponível em: https://www.mscand.dk/article/view/10416. Acesso em: 24 nov. 2024.