L. L. Zaitseva, “Brownian Motion in a Hilbert Space with a Semipermeable Membrane on a Hyperplane”, Ukr. Mat. Zhurn., vol. 53, no. 7, pp. 887–891, Jul. 2001, Accessed: Dec. 05, 2025. [Online]. Available: https://umj.imath.kiev.ua/index.php/umj/article/view/4310