Physical Review A, Vol. 44, No. 3. (1991), 1948.
Physical Review A, Vol. 50, No. 2. (1994), 1490.
Physical Review A, Vol. 35, No. 10. (15 May 1987), 4226.
Opt. Lett., Vol. 11, No. 3. (1 March 1986), 189.
Physical Review A, Vol. 23, No. 6. (June 1981), 3118.
Journal of Physics B: Atomic, Molecular and Optical Physics, Vol. 21, No. 2. (1988), pp. L9-L14.
Optics and Spectroscopy, Vol. 100, No. 4. (30 April 2006), pp. 613-616.
Physical Review B (Condensed Matter and Materials Physics), Vol. 69, No. 20. (2004)
Physical Review A, Vol. 38, No. 2. (15 July 1988), 808.
Physical Review Letters, Vol. 86, No. 17. (23 April 2001), 3903.
Journal of the Optical Society of America, Vol. 67, No. 9. (1977), pp. 1252-1261.
Opt. Lett., Vol. 29, No. 22. (15 November 2004), pp. 2659-2661.