BUDAGHYAN, L. M. ELEMENTARY CLASSIFICATION OF QUASI-BOOLEAN ALGEBRAS. Proceedings of the YSU A: Physical and Mathematical Sciences, Yerevan, Armenia, v. 36, n. 3 (199), p. 12–19, 2002. DOI: 10.46991/PYSUA.2002.36.3.012. Disponível em: https://journals.ysu.am/index.php/proceedings-phys-math/article/view/vol36_no3_2002_pp012-019. Acesso em: 21 jan. 2026.