@article{article3c6ff83a,
title   = {Z-scan formula for saturable Kerr media},
author = {Bian, S. and Martinelli, Marcelo and Horowicz, Ricardo Josué},
year = {1999},
doi = {10.1016/s0030-4018(99)00592-1},
journal   = {Optics communications}
}