@article{00036751,
title = {On solvability of mixed monotone operator equations with applications to mixed quasimonotone differential systems involving discontinuities.},
journal = {Journal of Applied Mathematics and Stochastic Analysis},
volume = {5},
year = {1992},
pages = {1-17},
doi = {10.1155/S1048953392000017},
zbl = {0761.47033},
language = {en},
url = {http://dml.mathdoc.fr/item/00036751}
}
Heikkilä, S.; Kumpulainen, M.; Lakshmikantham, V. On solvability of mixed monotone operator equations with applications to mixed quasimonotone differential systems involving discontinuities.. Journal of Applied Mathematics and Stochastic Analysis, Tome 5 (1992) pp. 1-17. doi : 10.1155/S1048953392000017. http://gdmltest.u-ga.fr/item/00036751/