@article{vanvaerenbergh2006spectral, author = {Van Vaerenbergh, Steven and Santamar\'ia, Ignacio}, 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 }