SAPAGOVAS, J. On the reliability of renewed system with dependent elements. Lithuanian Mathematical Journal, [S. l.], v. 9, n. 3, p. 589–604, 1969. DOI: 10.15388/LMJ.1969.20805. Disponível em: https://www.journals.vu.lt/LMJ/article/view/20805.. Acesso em: 28 apr. 2024.