VANKOV ILIEV, V. A GENERALIZATION OF REDFIELD’S MASTER THEOREM. Ann. Sofia Univ. Fac. Math. and Inf., [S. l.], v. 95, p. 91–98, 2003. Disponível em: https://ftl5.uni-sofia.bg/index.php/fmi/article/view/179. Acesso em: 11 apr. 2025.