Bräuning

Fully Differential Cross Sections for Double Photoionization of He Measured by Recoil Ion Momentum Spectroscopy.

Jung, Vogt, Kanter, 1996, Physical review letters.

Double and single ionization of helium by 58-keV x rays.

Vogt, Meyer, Ullrich, 1996, Physical Review Letters.

Influence of the recoil effect in Ti K-shell ionization probabilities.

Trautmann, Schmidt-Böcking, Ullmann, 1991, Physical review. A, Atomic, molecular, and optical physics.