Portnyahin, D. V. (2009) “Boundedness of weak solutions of a nondiagonal parabolic system of two equations”, Ukrains’kyi Matematychnyi Zhurnal, 61(3), pp. 400-407. Available at: https://umj.imath.kiev.ua/index.php/umj/article/view/3028 (Accessed: 26April2024).