1.
Korzyuk V, Rudzko JV. Curvilinear Parallelogram Identity and Mean-Value Property for a Semilinear Hyperbolic Equation of the Second Order. EMJ [Internet]. 2024 Jul. 15 [cited 2024 Jul. 16];15(2):61-74. Available from: https://emj.enu.kz/index.php/main/article/view/343