Vasylyk, Olga, and Yehor Okuniev. “Modelling HIV AIDS Epidemic in Ukraine As a Continuous-Time Markov Process”. Bulletin of Taras Shevchenko National University of Kyiv. Physics and Mathematics 82, no. 1 (June 5, 2026): 27–33. Accessed October 10, 2026. https://bphm.knu.ua/bphm/article/view/598.