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Freegarde, T. G. ., Walz, J., & Hänsch, T. . (1995). Confinement and manipulation of atoms using short laser pulses. Optics Communications, 117(3-4), 262–267. doi:10.1016/0030-4018(95)00172-5 
10.1016/0030-4018(95)00172-5