@article{MAN_1989__283_1_164507,
     author = {Pavol Quittner},
     title = {On the {Principle} of {Linearized} {Stability} for {Varitional} {Inequalities.}},
     journal = {Mathematische Annalen},
     pages = {257--270},
     year = {1989},
     volume = {283},
     number = {1},
     zbl = {0642.49006},
     url = {http://geodesic.mathdoc.fr/item/MAN_1989__283_1_164507/}
}