@article{GDZPPN001185101, title = {An approximation for the zeros of Bessel functions.}, journal = {Numerische Mathematik}, volume = {59}, year = {1991}, pages = {647-658}, zbl = {0760.65020}, url = {http://dml.mathdoc.fr/item/GDZPPN001185101} }
Elbert, A. An approximation for the zeros of Bessel functions.. Numerische Mathematik, Tome 59 (1991) pp. 647-658. http://gdmltest.u-ga.fr/item/GDZPPN001185101/