@article{1103036125,
author = {Feingold, David G. and Varga, Richard S.},
title = {Block diagonally dominant matrices and generalizations of the Gerschgorin circle theorem.},
journal = {Pacific J. Math.},
volume = {12},
number = {4},
year = {1962},
pages = { 1241-1250},
language = {en},
url = {http://dml.mathdoc.fr/item/1103036125}
}
Feingold, David G.; Varga, Richard S. Block diagonally dominant matrices and generalizations of the Gerschgorin circle theorem.. Pacific J. Math., Tome 12 (1962) no. 4, pp. 1241-1250. http://gdmltest.u-ga.fr/item/1103036125/