@article{M2AN_2001__35_1_129_0,
     author = {Hinterm\"uller, Michael},
     title = {Inverse coefficient problems for variational inequalities : optimality conditions and numerical realization},
     journal = {ESAIM: Mod\'elisation math\'ematique et analyse num\'erique},
     pages = {129--152},
     publisher = {EDP-Sciences},
     volume = {35},
     number = {1},
     year = {2001},
     mrnumber = {1811984},
     zbl = {0978.65054},
     language = {en},
     url = {http://www.numdam.org/item/M2AN_2001__35_1_129_0/}
}