BOUTCHKOVA, V. GENERICITY IN ABSTRACT STRUCTURE DEGREES. Ann. Sofia Univ. Fac. Math. and Inf., [S. l.], v. 95, p. 41–51, 2003. Disponível em: https://admin.uni-sofia.bg/index.php/fmi/article/view/174. Acesso em: 15 jan. 2025.