@article{02213797, title = {Optimal regularity of lower dimensional obstacle problems.}, journal = {Zapiski Nauchnykh Seminarov POMI}, volume = {314}, year = {2004}, pages = {49-66}, doi = {10.1007/s10958-005-0496-1}, zbl = {1108.35038}, language = {en}, url = {http://dml.mathdoc.fr/item/02213797} }
Athanasopoulos, I.; Caffarelli, L.A. Optimal regularity of lower dimensional obstacle problems.. Zapiski Nauchnykh Seminarov POMI, Tome 314 (2004) pp. 49-66. doi : 10.1007/s10958-005-0496-1. http://gdmltest.u-ga.fr/item/02213797/