Application of the Phase-Space Path Integral to Strong-Laser-Field-Assisted Electron-Ion Radiative Recombination: A Gauge-Covariant Formulation. - Ali Esquembre Kucukalic; Wilhelm Becker; Dejan B. Milosevic (Symmetry, 2020)

Symmetries and Selection Rules of the Spectra of Photoelectrons and High-Order Harmonics Generated by Field-Driven Atoms and Molecules. - Dino Habibovic; Wilhelm Becker; Dejan B. Milosevic (Symmetry, 2021)