%0 Journal Article %A Lou, Hongwei %T Optimality conditions for semilinear parabolic equations with controls in leading term %J ESAIM: Control, Optimisation and Calculus of Variations %D 2011 %P 975-994 %V 17 %N 4 %I EDP-Sciences %U http://www.numdam.org/articles/10.1051/cocv/2010034/ %R 10.1051/cocv/2010034 %G en %F COCV_2011__17_4_975_0