Keitel, Christoph H. Division Prof. Dr. Christoph H. Keitel, MPI for Nuclear Physics, Max Planck Society;
http://link.aps.org/doi/10.1103/PhysRevA.55.4483 (Publisher version)
Martinez, M. A., Herczfeld, P. R., Samuels, C., Narducci, L. M., & Keitel, C. H. (1997). Quantum interference effects in spontaneous atomic emission: Dependence of the resonance fluorescence spectrum on the phase of the driving field. Physical Review. A, 55(6), 4483-4491. doi:10.1103/PhysRevA.55.4483.