1. Sang-Kil Son, Koudai Toyota, Robin Santra, Benedikt Rudek, Artem Rudenko, and Daniel Rolles, “Relativistic and resonant effects on x-ray multiphoton multiple ionization of heavy atoms” in 83rd Annual Meeting of the DPG and DPG Spring Meeting of the Section AMOP (German Physical Society, Rostock, Germany, March 11-15, 2019) [oral presentation].
2. Sang-Kil Son, “Resonances in x-ray multiphoton ionization” in Molecular quantum dynamics beyond bound states (Institute of Physics, Rostock University, Rostock, Germany, March 10-12, 2021) [invited talk].
3. Sang-Kil Son, “Multiple-core-hole resonance spectroscopy with ultraintense X-ray pulses” in CFEL-DESY Theory Seminar (CFEL, DESY, Hamburg, Germany, September 20, 2023) [oral presentation].
4. Sang-Kil Son, “Non-equilibrium pathways 
to a hot plasma: 
multi-resonance excitation and plasma evolution dynamics” in CFEL-DESY Theory Seminar (CFEL, DESY, Hamburg, Germany, April 30, 2025) [oral presentation].
5. Sang-Kil Son, “Quantum-state-resolved X-ray multiphoton ionization dynamics” in XXXIV International Conference on Photonic, Electronic and Atomic Collisions (Sapporo, Japan, July 29-August 5, 2025) [invited talk].