A. I. Gorshkov, “On solvability of the problem without initial conditions for strongly parabolic systems in a non-cylindrical domain”, Ukr. Mat. Zhurn., vol. 23, no. 4, pp. 520–525, Jun. 1971, Accessed: Feb. 17, 2026. [Online]. Available: https://umj.imath.kiev.ua/index.php/umj/article/view/8586