@ARTICLE{RuSchmiSie96,
  author = {Rumpf, M. and Schmidt, A. and Siebert, K.},
  title = {Functions defining arbitrary meshes, a flexible interface between
	numerical data and visualization routines},
  journal = {Comput. Graph. Forum},
  year = {1996},
  volume = {15},
  pages = {129--141},
  number = {2},
  pdf = {http://numod.ins.uni-bonn.de/research/papers/public/RuSchmiSie96.pdf}
}