@InProceedings{Supelec300,
author = {Godefroy Kugel and Nicolas Fressengeas and Delphine Wolfersberger and Jean Maufoy},
title = {{Self-focusing of laser light and spatial solitons in photorefractive media}},
year = {1998},
booktitle = {{XXIII International School of Ferroelectrics Physics}},
month = {sep},
address = {Kudowa (Pologne)}
}