Denchev, Stoyan, Alexandra Kumanova, Nikolay Vasilev, and Tania Todorova. “Electronic Libraries of the Student Scientific Society at University of Library Studies and Information Technologies”. Bobcatsss (February 9, 2023): 124–129. Accessed April 20, 2024. https://parc.ipp.pt/index.php/bobcatsss/article/view/4969.