@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/