@article{M2AN_2013__47_4_1077_0,
     author = {Kunisch, Karl and Wagner, Marcus},
     title = {Optimal control of the bidomain system {(III):} {Existence} of minimizers and first-order optimality conditions},
     journal = {ESAIM: Mathematical Modelling and Numerical Analysis },
     pages = {1077--1106},
     publisher = {EDP-Sciences},
     volume = {47},
     number = {4},
     year = {2013},
     doi = {10.1051/m2an/2012058},
     mrnumber = {3082290},
     zbl = {1275.49005},
     language = {en},
     url = {http://www.numdam.org/articles/10.1051/m2an/2012058/}
}