@article{GDZPPN001164708, title = {A posteriori error bounds for the zeros of polynomials.}, journal = {Numerische Mathematik}, volume = {5}, year = {1963}, pages = {380-398}, zbl = {0133.08401}, url = {http://dml.mathdoc.fr/item/GDZPPN001164708} }
BÖRSCH-SUPAN, W. A posteriori error bounds for the zeros of polynomials.. Numerische Mathematik, Tome 5 (1963) pp. 380-398. http://gdmltest.u-ga.fr/item/GDZPPN001164708/