%0 Journal Article %A Neitzel, Ira %A Tröltzsch, Fredi %T On regularization methods for the numerical solution of parabolic control problems with pointwise state constraints %J ESAIM: Control, Optimisation and Calculus of Variations %D 2009 %P 426-453 %V 15 %N 2 %I EDP-Sciences %U http://www.numdam.org/articles/10.1051/cocv:2008038/ %R 10.1051/cocv:2008038 %G en %F COCV_2009__15_2_426_0