@article{04198564, title = {Strong maximum principles for parabolic nonlinear problems with nonlocal inequalities together with integrals.}, journal = {Journal of Applied Mathematics and Stochastic Analysis}, volume = {3}, year = {1990}, pages = {65-80}, doi = {10.1155/S1048953390000065}, zbl = {0726.35023}, language = {en}, url = {http://dml.mathdoc.fr/item/04198564} }
Byszewski, Ludwik. Strong maximum principles for parabolic nonlinear problems with nonlocal inequalities together with integrals.. Journal of Applied Mathematics and Stochastic Analysis, Tome 3 (1990) pp. 65-80. doi : 10.1155/S1048953390000065. http://gdmltest.u-ga.fr/item/04198564/