@article{M2AN_2012__46_5_1107_0,
     author = {R\"osch, Arnd and Steinig, Simeon},
     title = {\protect\emph{A priori }error estimates for a state-constrained elliptic optimal control problem},
     journal = {ESAIM: Mathematical Modelling and Numerical Analysis },
     pages = {1107--1120},
     publisher = {EDP-Sciences},
     volume = {46},
     number = {5},
     year = {2012},
     doi = {10.1051/m2an/2011076},
     zbl = {1271.65104},
     language = {en},
     url = {http://www.numdam.org/articles/10.1051/m2an/2011076/}
}