@article{COCV_2009__15_2_426_0,
     author = {Neitzel, Ira and Tr\"oltzsch, Fredi},
     title = {On regularization methods for the numerical solution of parabolic control problems with pointwise state constraints},
     journal = {ESAIM: Control, Optimisation and Calculus of Variations},
     pages = {426--453},
     publisher = {EDP-Sciences},
     volume = {15},
     number = {2},
     year = {2009},
     doi = {10.1051/cocv:2008038},
     mrnumber = {2513093},
     zbl = {1171.49017},
     language = {en},
     url = {http://www.numdam.org/articles/10.1051/cocv:2008038/}
}