Faxriddinov , Fitrat, and Ozodbek Axmedov. “BO‘LAKLI O‘ZGARMAS ARGUMENTLI IKKINCHI TARTIBLI DIFFERENSIAL TENGLAMALARNING DAVRIY YECHIMLARI MAVJUDLIK SHARTLARI”. Scientific Practical Conference, vol. 2, no. 2, Apr. 2026, pp. 48-51, https://d-pressa.com/index.php/spc/article/view/1027.