@article{824771, author = {H Eaton and Scott Diddams and A Zozulya and A van Engen and T Clement}, title = {Instantaneous and noninstantaneous nonlinear effects in femtosecond pulse propagation}, year = {1999}, number = {3609}, month = {1999-01-01 00:01:00}, publisher = {Optical Pulse and Beam Propagation SPIE Proc}, language = {en}, }