@PhDThesis{	  Morgenstern:2017,
  author	= {P. Morgenstern},
  title		= {Mesh Refinement Strategies for the Adaptive Isogeometric
		  Method},
  school	= {Institut f\"ur Numerische Simulation, Rheinische
		  Friedrich-Wilhelms-Universität Bonn},
  year		= {2017},
  annote	= {thesis}
}