1.
Todorova K. Modeling and design of learning content management systems: UML as a tool for learning system design. Ann. Sofia Univ. Fac. Math. and Inf. [Internet]. 2008 Dec. 12 [cited 2024 Nov. 24];98:231-42. Available from: https://ftl5.uni-sofia.bg./index.php/fmi/article/view/140