@Article{	  MR2753728,
  author	= {Krumbiegel, Klaus and Neitzel, Ira and R{\"o}sch, Arnd},
  title		= {Sufficient optimality conditions for the
		  {M}oreau-{Y}osida-type regularization concept applied to
		  semilinear elliptic optimal control problems with pointwise
		  state constraints},
  journal	= {Ann. Acad. Rom. Sci. Ser. Math. Appl.},
  fjournal	= {Annals of the Academy of Romanian Scientists. Series on
		  Mathematics and its Applications},
  volume	= {2},
  year		= {2010},
  number	= {2},
  pages		= {222--246},
  issn		= {2066-5997},
  mrclass	= {49M30 (49K20)},
  mrnumber	= {2753728 (2011k:49072)},
  mrreviewer	= {Christian Clason},
  annote	= {journal}
}