Jentschura, Ulrich David Division Prof. Dr. Christoph H. Keitel, MPI for Nuclear Physics, Max Planck Society;
Pachucki, K., Czarnecki, A., Jentschura, U. D., & Yerokhin, V. A. (2005). Complete two-loop correction to the bound-electron g factor. Physical Review A, 72(2): 022108. doi:10.1103/PhysRevA.72.022108.