MOVSISYAN, Y.; ASLANYAN, V. On the Algebras with Hyperidentities of the Variety of de Morgan Algebras. Mathematical Problems of Computer Science, [S. l.], v. 38, p. 77–79, 2021. Disponível em: https://mpcs.sci.am/index.php/mpcs/article/view/569. Acesso em: 3 apr. 2025.