DARBINYAN, S. K. A Theorem on Even Pancyclic Bipartite Digraphs. Mathematical Problems of Computer Science, [S. l.], v. 55, p. 9–25, 2021. DOI: 10.51408/1963-0069. Disponível em: http://mpcs.sci.am/index.php/mpcs/article/view/648. Acesso em: 22 dec. 2024.