KHADZHIIVANOV, N. ON THE MAXIMAL NUMBER OF EDGES IN A GRAPH. Ann. Sofia Univ. Fac. Math. and Inf., [S. l.], v. 82, n. 1, p. 25–34, 1991. Disponível em: https://stipendii.uni-sofia.bg/index.php/fmi/article/view/520. Acesso em: 5 dec. 2024.