@article{02168656, title = {Optical vortices in dispersive nonlinear Kerr-type media.}, journal = {International Journal of Mathematics and Mathematical Sciences}, volume = {2004}, year = {2004}, pages = {949-967}, doi = {10.1155/S0161171204301018}, zbl = {1069.35084}, language = {en}, url = {http://dml.mathdoc.fr/item/02168656} }
Kovachev, Lubomir M. Optical vortices in dispersive nonlinear Kerr-type media.. International Journal of Mathematics and Mathematical Sciences, Tome 2004 (2004) pp. 949-967. doi : 10.1155/S0161171204301018. http://gdmltest.u-ga.fr/item/02168656/