@article{03736921,
title = {Error estimates for the finite element solutions of variational inequalities.},
journal = {International Journal of Mathematics and Mathematical Sciences},
volume = {4},
year = {1981},
pages = {565-570},
doi = {10.1155/S0161171281000410},
zbl = {0469.65043},
language = {en},
url = {http://dml.mathdoc.fr/item/03736921}
}
Noor, M.Aslam. Error estimates for the finite element solutions of variational inequalities.. International Journal of Mathematics and Mathematical Sciences, Tome 4 (1981) pp. 565-570. doi : 10.1155/S0161171281000410. http://gdmltest.u-ga.fr/item/03736921/