Wu, S., Saijun, W., Plisson, T., Brown, R., Phillips, W., & Porto, J. (2009). Multiphoton Magnetooptical Trap. Physical Review Letters, 103(17), p. 173003. doi:10.1103/PhysRevLett.103.173003

Wu, Saijun, Wu Saijun, Thomas Plisson, Roger Brown, William Phillips, and J. Porto. "Multiphoton Magnetooptical Trap." Physical Review Letters 103, no. 17 (2009): 173003.

Wu, Saijun, et al. "Multiphoton Magnetooptical Trap." Physical Review Letters 103.17 (2009): 173003.