@article{01999253, title = {Nonlinear systems of differential inequalities and solvability of certain boundary value problems.}, journal = {Journal of Inequalities and Applications [electronic only]}, volume = {6}, year = {2001}, pages = {199-226}, doi = {10.1155/S1025583401000121}, zbl = {1039.34013}, language = {en}, url = {http://dml.mathdoc.fr/item/01999253} }
Rachůnková, Irena; Tvrdý, Milan. Nonlinear systems of differential inequalities and solvability of certain boundary value problems.. Journal of Inequalities and Applications [electronic only], Tome 6 (2001) pp. 199-226. doi : 10.1155/S1025583401000121. http://gdmltest.u-ga.fr/item/01999253/