@article{GDZPPN002223201,
title = {Bilateral Inequalities and Implicit Unilateral Systems of the Non-Variational Type.},
journal = {Manuscripta mathematica},
volume = {31},
year = {1980},
pages = {177-216},
zbl = {0452.35043},
url = {http://dml.mathdoc.fr/item/GDZPPN002223201}
}
Garroni, M.G.; Vivaldi, M.A. Bilateral Inequalities and Implicit Unilateral Systems of the Non-Variational Type.. Manuscripta mathematica, Tome 31 (1980) pp. 177-216. http://gdmltest.u-ga.fr/item/GDZPPN002223201/