GREGORICS, Tibor. Programming theorems on enumerator. Teaching Mathematics and Computer Science, [S. l.], v. 8, n. 1, p. 89–108, 2010. DOI: 10.5485/TMCS.2010.0243. Disponível em: https://ojs.lib.unideb.hu/tmcs/article/view/14867. Acesso em: 27 sep. 2024.