Zhalukevich DS. Equivalence transformations of families of se­cond-order quasi-linear hyperbolic equations of a two-variable function. Журнал Белорусского государственного университета. Математика. Информатика [Internet]. 2026 Sep. 16 [cited 2026 Nov. 11];(2):28-3. Available from: https://journals.bsu.by/index.php/mathematics/article/view/7305