@InProceedings{HeiBue10,
  author 	= {M. Hein and T. B{\"u}hler},
  title 	= {An inverse power method for nonlinear eigenproblems with applications in 1-spectral clustering and sparse {PCA}},
  booktitle 	= {Advances in Neural Information Processing Systems},
  volume 	= {23},
  year 	= {2010}
}