Nguyen, M. H., & Pham, T. D. (2004). On the Smoothness of a Generalized Solution of the First Initial Boundary-Value Problem for Strongly Parabolic Systems in a Cylinder with Nonsmooth Base with Respect to Time Variable. Ukrains’kyi Matematychnyi Zhurnal, 56(1), 78-87. https://umj.imath.kiev.ua/index.php/umj/article/view/3729