1. Sang-Kil Son and Robin Santra, “Inner-shell multiphoton multiple ionization dynamics of xenon atoms by x-ray free-electron laser pulses” in DPG Spring Meeting of the Section AMOP (German Physical Society, Hanover, Germany, March 18-22, 2013) [oral presentation].
2. Sang-Kil Son, “What happens to atoms and molecules during x-ray free-electron laser pulses?” in Seminar on Dynamical Aspects of Theoretical Chemistry (Department of Chemistry, Free University of Berlin, Berlin, Germany, November 19, 2015) [invited talk].
3. Sang-Kil Son, “What happens to atoms and molecules during x-ray free-electron laser pulses?” in Physical Colloquium (Institute of Physics, University of Kassel, Kassel, Germany, December 3, 2015) [invited talk].
4. Sang-Kil Son, “What happens to atoms and molecules during x-ray free-electron laser pulses?” in Physics and Photon Science Colloquium (Department of Physics and Photon Science, GIST, Gwangju, Korea, October 18, 2016) [invited talk].
5. Sang-Kil Son, “What happens to atoms and molecules during X-ray free-electron laser pulses?” in European XFEL Theory Seminar (European XFEL, Schenefeld, Germany, June 22, 2017) [invited talk].
6. Sang-Kil Son, “Electronic structure of atoms and molecules at high x-ray intensity” in New trends in theory for experiments at advanced light sources (European XFEL and CFEL, Schenefeld and Hamburg, Germany, November 29-December 1, 2017) [invited talk].
7. Sang-Kil Son, “Ultrafast ionization and fragmentation dynamics of molecules at high x-ray intensity” in Light-Matter Interaction: Recent Advances in Theory (DESY, Hamburg, Germany, January 25, 2018) in Satellite Workshop of European XFEL and DESY Photon Science Users' Meeting 2018 [invited talk].