@Article{Supelec134,
author = {Delphine Wolfersberger and Nicolas Fressengeas and Jean Maufoy and Godefroy Kugel},
title = {{Experimental self-focusing of a single laser pulse in photorefractive Bi12TiO20}},
journal = {Journal of Applied Physics},
year = {2001},
volume = {89},
number = {5},
pages = {2511-2515},
month = {mar},
url = {http://dx.doi.org/10.1063/1.1341207}
}