@article{JRAM_1984__354_152684,
     author = {Arnold Neumaier},
     title = {Eigenwertabsch\"atzungen f\"ur {Matrizen.}},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {206--212},
     publisher = {mathdoc},
     volume = {354},
     year = {1984},
     language = {de},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1984__354_152684/}
}