Tsonev, Ivan, and Stefan Kazakov. “POSSIBLE TEMPORARY PARAMETERS IN THE CENTRALIZED STRUCTURE OF THE TWO LEVELS”. JOURNAL SCIENTIFIC AND APPLIED RESEARCH 4, no. 1 (March 6, 2023): 22–25. Accessed November 7, 2024. https://jsar.ftn.shu.bg/ojs-3.3.0-7/index.php/jsar/article/view/77.