A Fast Approach for Overcomplete Sparse Decomposition Based on Smoothed ell <sup>0</sup> Norm.

G. Hosein Mohimani Massoud Babaie-Zadeh Christian Jutten A Fast Approach for Overcomplete Sparse Decomposition Based on Smoothed ell <sup>0</sup> Norm. 289-301 2009 57 IEEE Transactions on Signal Processing 1 http://dx.doi.org/10.1109/TSP.2008.2007606 db/journals/tsp/tsp57.html#MohimaniBJ09