@Article{	  MR2874969,
  author	= {Neitzel, Ira and Vexler, Boris},
  title		= {A priori error estimates for space-time finite element
		  discretization of semilinear parabolic optimal control
		  problems},
  journal	= {Numer. Math.},
  fjournal	= {Numerische Mathematik},
  volume	= {120},
  year		= {2012},
  number	= {2},
  pages		= {345--386},
  issn		= {0029-599X},
  coden		= {NUMMA7},
  mrclass	= {49M25 (49K20 65M15 65M60)},
  mrnumber	= {2874969},
  mrreviewer	= {Fredi Tr{\"o}ltzsch},
  doi		= {10.1007/s00211-011-0409-9},
  url		= {http://dx.doi.org/10.1007/s00211-011-0409-9},
  annote	= {journal}
}