@article{CRMATH_2007__344_6_399_0,
     author = {Loubes, Jean-Michel},
     title = {$ {\ell }^{1}$ sparsity and applications in estimation},
     journal = {Comptes Rendus. Math\'ematique},
     pages = {399--402},
     publisher = {Elsevier},
     volume = {344},
     number = {6},
     year = {2007},
     doi = {10.1016/j.crma.2007.01.027},
     language = {en},
     url = {http://www.numdam.org/articles/10.1016/j.crma.2007.01.027/}
}