S. Montant, A. Le Calvez, E. Freysz, A. Ducasse, and M. Couzi, "Time domain separation of nuclear and electronic contributions to the third-order nonlinearity in glasses,"
in International Quantum Electronics Conference, P. Corkum and N. Peyghambarian, eds.,
Vol. 7 of OSA Technical Digest
(Optical Society of America, 1998), paper QTuG14.