@ARTICLE{BeBaEt13,
  author = {Berkels, Benjamin and Bauer, Sebastian and Ettl, Svenja and Arold,
	Oliver and Hornegger, Joachim and Rumpf, Martin},
  title = {Joint Surface Reconstruction and 4{D} Deformation Estimation from
	Sparse Data and Prior Knowledge for Marker-Less Respiratory Motion
	Tracking},
  journal = {Medical Physics},
  year = {2013},
  volume = {40},
  pages = {091703},
  number = {9},
  month = {September},
  doi = {10.1118/1.4816675},
}