SKORDEV, D. ON THE DURATION DOMAINS FOR THE INTERVAL TEMPORAL LOGIC. Ann. Sofia Univ. Fac. Math. and Inf., [S. l.], v. 94, p. 27–33, 2002. Disponível em: https://ftl5.uni-sofia.bg/index.php/fmi/article/view/187. Acesso em: 4 dec. 2024.