@article{COCV_2011__17_1_86_0,
     author = {Schmidt, Bernd},
     title = {On a semilinear variational problem},
     journal = {ESAIM: Control, Optimisation and Calculus of Variations},
     pages = {86--101},
     publisher = {EDP-Sciences},
     volume = {17},
     number = {1},
     year = {2011},
     doi = {10.1051/cocv/2009038},
     mrnumber = {2775187},
     zbl = {1213.35222},
     language = {en},
     url = {http://www.numdam.org/articles/10.1051/cocv/2009038/}
}