@article{NUMA_1986__49_251451,
     author = {R. Beauwens},
     title = {Erratum. {Factorization} {Iterative} {Methods,} {M-operators} and {H-Operators.} {(Num.} {Math.} 31, 335-357 (1979)).},
     journal = {Numerische Mathematik},
     pages = {457--458},
     publisher = {mathdoc},
     volume = {49},
     year = {1986},
     zbl = {0431.65012},
     url = {http://geodesic.mathdoc.fr/item/NUMA_1986__49_251451/}
}