Narmanov, Otabek Abdigapparovich, Anvar Nazirovich Mirzayev, and Salohiddin Samaridinovich Nasridinov. “ON THE SYMMETRY GROUP OF DIFFERENTIAL EQUATIONS”. GOLDEN BRAIN 1, no. 28 (October 13, 2023): 142–150. Accessed November 15, 2024. https://researchedu.org/index.php/goldenbrain/article/view/5009.