@article{GDZPPN002362538, title = {Stability in Obstacle Problems.}, journal = {Mathematica Scandinavica}, volume = {74}, year = {1994}, pages = {87-100}, zbl = {0839.35050}, url = {http://dml.mathdoc.fr/item/GDZPPN002362538} }
Martio, O.; Gongbao, Li. Stability in Obstacle Problems.. Mathematica Scandinavica, Tome 74 (1994) pp. 87-100. http://gdmltest.u-ga.fr/item/GDZPPN002362538/