@article{ETNA_2008__28__a11,
     author = {Benzi, Michele and Razouk, Nader},
     title = {Decay bounds and $O(n)$ algorithms for approximating functions of sparse matrices},
     journal = {Electronic transactions on numerical analysis},
     publisher = {mathdoc},
     volume = {28},
     year = {2008},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ETNA_2008__28__a11/}
}