@INPROCEEDINGS{OlRu09,
  author = {Olischl{\"{a}}ger, Nadine and Rumpf, Martin},
  title = {Two Step Time Discretization of {W}illmore Flow},
  booktitle = {IMA Conference on the Mathematics of Surfaces},
  year = {2009},
  editor = {Edwin R. Hancock and Ralph R. Martin and Malcolm A. Sabin},
  volume = {5654},
  series = {Lecture Notes in Computer Science},
  pages = {278--292},
  publisher = {Springer},
  doi = {10.1007/978-3-642-03596-8_16},
  pdf = {http://numod.ins.uni-bonn.de/research/papers/public/OlRu09.pdf},
}