@article{vanvaerenbergh06_pnlbss,
  author = {S. Van Vaerenbergh and I. Santamar\'ia},
  title = {A Spectral Clustering Approach to Underdetermined Post-Nonlinear Blind Source Separation of Sparse Sources},
  journal = {IEEE Transactions on Neural Networks},
  volume = 17,
  number = 3,
  pages = {811-814},
  month = May,
  year = 2006
}