@article{NUMA_1973__21_132248,
     author = {Ludwig Elsner},
     title = {A {Remark} on {Simultaneous} {Inclusions} of the {Zeros} of a {Polynomial} by {Gershgorin's} {Theorem.}},
     journal = {Numerische Mathematik},
     pages = {425--427},
     publisher = {mathdoc},
     volume = {21},
     year = {1973},
     zbl = {0267.65037},
     url = {http://geodesic.mathdoc.fr/item/NUMA_1973__21_132248/}
}