Koval’chuk YA, Kozachenko YV. Boundary-Value problems with random initial conditions and functional series from subφ (Ω). I. Ukr. Mat. Zhurn. [Internet]. 1998 Apr. 25 [cited 2025 Apr. 16];50(4):504–515. Available from: https://umj.imath.kiev.ua/index.php/umj/article/view/4920