KALESHA VALI, Shaik; SUNDARAYYA, P.; SWAMY, U.M. Boolean Centre of a C-algebra. Armenian Journal of Mathematics, Yerevan, Armenia, v. 3, n. 3, p. 97–104, 2011. Disponível em: https://armjmath.sci.am/index.php/ajm/article/view/72. Acesso em: 3 apr. 2025.