TAMAZYAN, . H. A. .; CHUBARYAN, . A. A. . On Proof Complexities Relations in Some Systems of Propositional Calculus. Mathematical Problems of Computer Science, [S. l.], v. 54, p. 138–146, 2021. DOI: 10.51408/1963-0068. Disponível em: http://mpcs.sci.am/index.php/mpcs/article/view/491. Acesso em: 26 apr. 2024.