@article{NUMA_1973__21_132232,
     author = {Werner Sautter},
     title = {Schwankungsbereiche linearer {Optimierungsaufgaben.}},
     journal = {Numerische Mathematik},
     pages = {264--269},
     year = {1973},
     volume = {21},
     zbl = {0275.65021},
     url = {http://geodesic.mathdoc.fr/item/NUMA_1973__21_132232/}
}