@inproceedings{HeiBue10,
 author = {Hein, Matthias and B\"{u}hler, Thomas},
 title = {An inverse power method for nonlinear eigenproblems with applications in 1-{S}pectral {C}lustering and sparse {PCA}},
 booktitle = {Advances in Neural Information Processing Systems 23 (NIPS 2010)},
 publisher = {To appear},
 }