@article{COCV_2012__18_2_520_0,
     author = {Kunisch, Karl and Wachsmuth, Daniel},
     title = {Sufficient optimality conditions and semi-smooth newton methods for optimal control of stationary variational inequalities},
     journal = {ESAIM: Control, Optimisation and Calculus of Variations},
     pages = {520--547},
     publisher = {EDP-Sciences},
     volume = {18},
     number = {2},
     year = {2012},
     doi = {10.1051/cocv/2011105},
     mrnumber = {2954637},
     zbl = {1246.49021},
     language = {en},
     url = {http://www.numdam.org/articles/10.1051/cocv/2011105/}
}