@article{bwmeta1.element.bwnjournal-article-bcpv3i1p69bwm,
author = {Sty\'s, Tadeusz},
title = {On a maximum principle for nonlinear equations},
journal = {Banach Center Publications},
volume = {3},
year = {1978},
pages = {69-78},
zbl = {0378.65054},
language = {en},
url = {http://dml.mathdoc.fr/item/bwmeta1.element.bwnjournal-article-bcpv3i1p69bwm}
}
Styś, Tadeusz. On a maximum principle for nonlinear equations. Banach Center Publications, Tome 3 (1978) pp. 69-78. http://gdmltest.u-ga.fr/item/bwmeta1.element.bwnjournal-article-bcpv3i1p69bwm/