@InProceedings{Aachen98,
  author = {Hastreiter, P.  and  Rezk-Salama, C. and Greiner, G. and Ertl, T.},
  title  = {{Efficient Representation of Cortical Convolutions for the Analysis of Brain Surface Topology}},
  year   = {1998},
  booktitle = {{Workshop Aachen}}
}