@article{NUMA_1972__20_132194,
     author = {G. Alefeld},
     title = {\"Uber konvergente {Zerlegungen} von {Matrizen.}},
     journal = {Numerische Mathematik},
     pages = {312--316},
     publisher = {mathdoc},
     volume = {20},
     year = {1972},
     language = {de},
     url = {http://geodesic.mathdoc.fr/item/NUMA_1972__20_132194/}
}