@article{IM2_1984_23_3_a7,
     author = {V. N. Solov'ev},
     title = {A~generalization of {Gershgorin's} theorem},
     journal = {Izvestiya. Mathematics},
     pages = {545--560},
     year = {1984},
     volume = {23},
     number = {3},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_1984_23_3_a7/}
}