@article{GDZPPN00117276X,
title = {Multiple Zeros and Applications to Optimal Linear Functionals.},
journal = {Numerische Mathematik},
volume = {25},
year = {1975},
pages = {251-262},
zbl = {0307.65031},
url = {http://dml.mathdoc.fr/item/GDZPPN00117276X}
}
Loeb, H.L.; Barrar, R.B. Multiple Zeros and Applications to Optimal Linear Functionals.. Numerische Mathematik, Tome 25 (1975) pp. 251-262. http://gdmltest.u-ga.fr/item/GDZPPN00117276X/