@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/