Fritzsche, S. Division Prof. Dr. Joachim H. Ullrich, MPI for Nuclear Physics, Max Planck Society;
Grum-Grzhimailo, A. N., Fritzsche, S., Gryzlova, E. V., & Kabachnik, N. M. (2008). Angular distributions and angular correlations in sequential two-photon double ionization of atoms. Journal of Physics B-Atomic Molecular and Optical Physics, 41(16): 165601.