@article{NUMA_1979__33_132636,
     author = {A. Greenbaum},
     title = {Comparison of {Splittings} {Used} with the {Conjugate} {Gradient} {Algorithm.}},
     journal = {Numerische Mathematik},
     pages = {181--194},
     publisher = {mathdoc},
     volume = {33},
     year = {1979},
     zbl = {0394.65011},
     url = {http://geodesic.mathdoc.fr/item/NUMA_1979__33_132636/}
}