Кононюк, А. Ю., І. В. Малінкін, and В. О. Малярчук. “Introduction to the Mathematical Theory of Scientifically Defined Notions System”. Problems of Informatization and Management 4, no. 44 (December 1, 2013): 53–63. Accessed February 26, 2026. https://jrnl.nau.edu.ua/index.php/PIU/article/view/6395.