@article{MZ_1964__85_170307,
     author = {Wilhelm Niethammer},
     title = {Relaxation bei nichtsymmetrischen {Matrizen.}},
     journal = {Mathematische Zeitschrift},
     pages = {319--327},
     publisher = {mathdoc},
     volume = {85},
     year = {1964},
     zbl = {0246.65015},
     url = {http://geodesic.mathdoc.fr/item/MZ_1964__85_170307/}
}