C. W. Siders, J. L. W. Siders, and A. J. Taylor, "Femtosecond coherent spectroscepy at 800 nm: measuring high-field ionization rates in gases with MI-FROG,"
in International Quantum Electronics Conference, P. Corkum and N. Peyghambarian, eds.,
Vol. 7 of OSA Technical Digest
(Optical Society of America, 1998), paper JTuB6.