[1]
I. I. Skrypnik, “A necessary condition for the regularity of a boundary point for degenerating parabolic equations with measurable coefficients”, Ukr. Mat. Zhurn., vol. 56, no. 6, pp. 818–836, Jun. 2004, Accessed: Apr. 13, 2025. [Online]. Available: https://umj.imath.kiev.ua/index.php/umj/article/view/3801