Кахута, Н. Д. (2014) “Mathematical foundations of relational databases. Part 2: The properties of generalized table operations”, Bulletin of V.N. Karazin Kharkiv National University, series «Mathematical modeling. Information technology. Automated control systems», 25(1131), pp. 106-117. Available at: https://periodicals.karazin.ua/mia/article/view/14235 (Accessed: 22November2024).