@article{NUMA_1992__61_3_133612,
     author = {Monga-Made Magolu},
     title = {Modified block-approximate factorization strategies.},
     journal = {Numerische Mathematik},
     pages = {91--110},
     publisher = {mathdoc},
     volume = {61},
     number = {3},
     year = {1992},
     zbl = {0724.65029},
     url = {http://geodesic.mathdoc.fr/item/NUMA_1992__61_3_133612/}
}