@article{COCV_2013__19_2_460_0,
     author = {Kunisch, Karl and Wang, Lijuan},
     title = {Time optimal control of the heat equation with pointwise control constraints},
     journal = {ESAIM: Control, Optimisation and Calculus of Variations},
     pages = {460--485},
     publisher = {EDP-Sciences},
     volume = {19},
     number = {2},
     year = {2013},
     doi = {10.1051/cocv/2012017},
     mrnumber = {3049719},
     zbl = {1272.35109},
     language = {en},
     url = {http://www.numdam.org/articles/10.1051/cocv/2012017/}
}