BÁCSÓ, Sándor; SZILASI, Zoltán. Notes on the representational possibilities of projective quadrics in four dimensions. Teaching Mathematics and Computer Science, [S. l.], v. 4, n. 1, p. 167–177, 2006. DOI: 10.5485/TMCS.2006.0114. Disponível em: https://ojs.lib.unideb.hu/tmcs/article/view/14766. Acesso em: 27 sep. 2024.