@incollection{NIPS2007_1048,
 title = {On Sparsity and Overcompleteness in Image Models},
 author = {Pietro Berkes and Richard Turner and Maneesh Sahani},
 booktitle = {Advances in Neural Information Processing Systems 20},
 editor = {J.C. Platt and D. Koller and Y. Singer and S. Roweis},
 publisher = {MIT Press},
 address = {Cambridge, MA},
 pages = {89--96},
 year = {2008}
}