WOLSKI, M.; STASIAK, A. New features in UML syntax and semantics. Studia Informatica. System and information technology, [S. l.], v. 7, n. 1-2, p. 265–276, 2006. Disponível em: https://czasopisma.uph.edu.pl/studiainformatica/article/view/2867. Acesso em: 29 apr. 2024.