Improved iterative shrinkage-thresholding for sparse signal recovery via Laplace mixtures models Chiara Ravazzi, Enrico Magli (2018) Improved iterative shrinkage-thresholding for sparse signal recovery via Laplace mixtures models, In: EURASIP JOURNAL ON ADVANCES IN SIGNAL PROCESSING, pp. 1-26, ISSN: 1687-6172