@article{COCV_2017__23_1_217_0,
     author = {Clason, Christian and Schiela, Anton},
     title = {Optimal control of elliptic equations with positive measures},
     journal = {ESAIM: Control, Optimisation and Calculus of Variations},
     pages = {217--240},
     publisher = {EDP-Sciences},
     volume = {23},
     number = {1},
     year = {2017},
     doi = {10.1051/cocv/2015046},
     mrnumber = {3601022},
     zbl = {1365.49005},
     language = {en},
     url = {http://archive.numdam.org/articles/10.1051/cocv/2015046/}
}