@InCollection{	  MR3060488,
  author	= {Neitzel, Ira and Tr{\"o}ltzsch, Fredi},
  title		= {Numerical analysis of state-constrained optimal control
		  problems for {PDE}s},
  booktitle	= {Constrained optimization and optimal control for partial
		  differential equations},
  series	= {Internat. Ser. Numer. Math.},
  volume	= {160},
  pages		= {467--482},
  publisher	= {Birkh\"auser/Springer Basel AG, Basel},
  year		= {2012},
  mrclass	= {49M25 (49M05 65N30)},
  mrnumber	= {3060488},
  doi		= {10.1007/978-3-0348-0133-1_24},
  url		= {http://dx.doi.org/10.1007/978-3-0348-0133-1_24},
  annote	= {series}
}