@Article{Supelec141,
author = {Nicolas Fressengeas and Delphine Wolfersberger and Jean Maufoy and Godefroy Kugel},
title = {{Experimental study of the self-focusing process temporal behavior in photorefractive Bi12TiO20}},
journal = {Journal of Applied Physics},
year = {1999},
volume = {85},
number = {4},
pages = {2062-2067},
month = {feb}
}