@article{NUMA_1964__6_131602,
     author = {L. BITTNER},
     title = {\"Uber ein mehrstufiges {Iterationsverfahren} zur {L\"osung} von linearen {Gleichungen.}},
     journal = {Numerische Mathematik},
     pages = {161--180},
     publisher = {mathdoc},
     volume = {6},
     year = {1964},
     zbl = {0123.32102},
     url = {http://geodesic.mathdoc.fr/item/NUMA_1964__6_131602/}
}