Keitel, Christoph H. Division Prof. Dr. Christoph H. Keitel, MPI for Nuclear Physics, Max Planck Society;
http://iopscience.iop.org/0953-4075/33/6/105/ (出版社版)
Walser, M. W., & Keitel, C. H. (2000). Spin-induced force in intense laser-electron interaction. Journal of Physics B: Atomic, Molecular and Optical Physics, 33(6), L221-L225. doi:10.1088/0953-4075/33/6/105.