@inproceedings{estimatingvectorfieldsusingsparsebasis,
  title = {Estimating vector fields using sparse basis field expansions},
  author = {Stefan Haufe and Vadim V. Nikulin and Andreas Ziehe and Klaus-Robert Müller and Guido Nolte},
  year = {2008},
  booktitle = {NeurIPS 2008 12},
  url = {http://papers.nips.cc/paper/3470-estimating-vector-fields-using-sparse-basis-field-expansions},
}