Zadrzyńska, Ewa, and Wojciech M. Zajączkowski. “On Existence of Solutions of Mixed Problems for Parabolic Systems”. Topological Methods in Nonlinear Analysis 2, no. 1 (September 1, 1993): 125–145. Accessed April 24, 2024. https://apcz.umk.pl/TMNA/article/view/TMNA.1993.034.