@article{ETNA_2007__26__a14,
     author = {Benzi,  Michele and U\c{c}ar,  Bora},
     title = {Block triangular preconditioners for {\(M\)-matrices} and {Markov} chains},
     journal = {Electronic transactions on numerical analysis},
     pages = {209--227},
     year = {2007},
     volume = {26},
     zbl = {1171.65388},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ETNA_2007__26__a14/}
}