ZELINKA, B. (0, 1)-Matrices with Isomorphic Term Bigraphs have Equal Ranks. The Journal of the Indian Mathematical Society, [S. l.], v. 39, n. 1-4, p. 315–319, 1975. Disponível em: http://www.informaticsjournals.com/index.php/jims/article/view/16658. Acesso em: 2 may. 2024.