Larin DV, Skrypnik IV. Principle of additivity in averaging of degenerate nonlinear Dirichlet problems. Ukr. Mat. Zhurn. [Internet]. 1998 Jan. 25 [cited 2025 Dec. 5];50(1):118–135. Available from: https://umj.imath.kiev.ua/index.php/umj/article/view/4977