Vasilecas, Olegas, and Vladimir Avdejenkov. “Business Rules Systems Modelling With UML and Rules Enforcing in Active Relational Databases”. Lietuvos matematikos rinkinys 44, no. spec. (December 17, 2004): 383–387. Accessed July 18, 2024. https://www.journals.vu.lt/LMR/article/view/31947.