Fedorchuk VM, Fedorchuk VI. On reduction of the (1+3)-dimensional inhomogeneous Monge-Ampère equation to the first-order partial differential equations. Ukr. Mat. Zhurn. [Internet]. 2022Apr.26 [cited 2024Apr.27];74(3):418-26. Available from: https://umj.imath.kiev.ua/index.php/umj/article/view/6996