@article{geometricalcomplexityofdataapproximators,
  title = {Geometrical complexity of data approximators},
  author = {E. M. Mirkes and A. Zinovyev and A. N. Gorban},
  year = {2013},
  eprint = {1302.2645},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1302.2645v2},
}