@article{article21bea3b7,
title   = {Transient four-wave mixing in saturable media with a nonlinear refractive index},
author = {Souza, P C de and Nader, G and Catunda, Tomaz and Muramatsu, Mikiya and Horowitz, R J},
year = {1999},
doi = {10.1016/s0030-4018(99)00112-1},
journal   = {Optics Communications}
}