@article{NUMA_1975__25_132382,
     author = {R.S. Varga and G. Alefeld},
     title = {Zur {Konvergenz} des symmetrischen {Relations} {Verfahrens.} -  {On} the {Convergence} of the {Symmetric} {SOR} {Method.}},
     journal = {Numerische Mathematik},
     pages = {291--296},
     publisher = {mathdoc},
     volume = {25},
     year = {1975},
     url = {http://geodesic.mathdoc.fr/item/NUMA_1975__25_132382/}
}