@article{GDZPPN001170759, title = {A posteriori Error Bounds for the Zeros of a Polynomial.}, journal = {Numerische Mathematik}, volume = {19}, year = {1972}, pages = {139-148}, zbl = {0235.65034}, url = {http://dml.mathdoc.fr/item/GDZPPN001170759} }
Gutknecht, Martin. A posteriori Error Bounds for the Zeros of a Polynomial.. Numerische Mathematik, Tome 19 (1972) pp. 139-148. http://gdmltest.u-ga.fr/item/GDZPPN001170759/