@Article{	  neiwicwol2015,
  author	= {Neitzel, Ira and Wick, Thomas and Wollner, Winnifried},
  title		= {An optimal control problem governed by a regularized phase
		  field fracture propagation model},
  journal	= {SIAM J. Control Optim.},
  fjournal	= {SIAM Journal on Control and Optimization},
  year		= {2017},
  volume	= {55},
  number	= {4},
  pages		= {2271--2288},
  doi		= {10.1137/16M1062375},
  note		= {also available as IGDK 1754 Preprint 2015-12},
  annote	= {journal}
}