@article{ETNA_2005__20__a11,
     author = {Li, Na and Saad, Yousef},
     title = {Crout versions of {ILU} factorization with pivoting for sparse symmetric matrices},
     journal = {Electronic transactions on numerical analysis},
     pages = {75--85},
     publisher = {mathdoc},
     volume = {20},
     year = {2005},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ETNA_2005__20__a11/}
}