@article{GDZPPN002024365, title = {Discrete Maximum Principle for Finite-Difference Operators.}, journal = {Aequationes mathematicae}, volume = {5}, year = {1970}, pages = {338-352}, zbl = {0198.14601}, url = {http://dml.mathdoc.fr/item/GDZPPN002024365} }
Ciarlet, Philippe G. Discrete Maximum Principle for Finite-Difference Operators.. Aequationes mathematicae, Tome 5 (1970) pp. 338-352. http://gdmltest.u-ga.fr/item/GDZPPN002024365/