@Article{ Neitzel.Wollner:2017, author = {Neitzel, Ira and Wollner, Winnifried}, title = {A priori $L^2$-discretization error estimates for the state in elliptic optimization problems with pointwise inequality state constraints}, journal = {Numer. Math.}, fjournal = {Numerische Mathematik}, volume = {online first}, year = {2017}, doi = {10.1007/s00211-017-0906-6}, inspreprintnum= {1606}, annote = {journal}, pdf = {http://neitzel.ins.uni-bonn.de/pub/NW2016_INS.pdf}, note = {also available as INS Preprint No. 1606.} }