@article{JMLR:v17:15-311,
  author  = {Alberto N. Escalante-B. and Laurenz Wiskott},
  title   = {Theoretical Analysis of the Optimal Free Responses of Graph-Based SFA for the Design of Training Graphs},
  journal = {Journal of Machine Learning Research},
  year    = {2016},
  volume  = {17},
  number  = {157},
  pages   = {1--36},
  url     = {http://jmlr.org/papers/v17/15-311.html}
}