HORVÁTH, Eszter. On four-dimensional crystallographic groups. Teaching Mathematics and Computer Science, [S. l.], v. 4, n. 2, p. 391–404, 2006. DOI: 10.5485/TMCS.2006.0137. Disponível em: https://ojs.lib.unideb.hu/tmcs/article/view/14779. Acesso em: 20 oct. 2024.