1. Sang-Kil Son, Linda Young, and Robin Santra, “Impact of hollow-atom formation on coherent x-ray scattering at high intensity,” Phys. Rev. A 83, 033402 (2011).
2. Sang-Kil Son and Robin Santra, “Monte Carlo calculation of ion, electron, and photon spectra of xenon atoms in x-ray free-electron laser pulses,” Phys. Rev. A 85, 063415 (2012).
3. Robert Thiele, Sang-Kil Son, Beata Ziaja, and Robin Santra, “Effect of screening by external charges on the atomic orbitals and photoinduced processes within the Hartree-Fock-Slater atom,” Phys. Rev. A 86, 033411 (2012).
4. Sang-Kil Son, Robert Thiele, Zoltan Jurek, Beata Ziaja, and Robin Santra, “Quantum-mechanical calculation of ionization potential lowering in dense plasmas,” Phys. Rev. X 4, 031004 (2014).
5. Julia M. Schäfer, Ludger Inhester, Sang-Kil Son, Reinhold F. Fink, and Robin Santra, “Electron and fluorescence spectra of a water molecule irradiated by an x-ray free-electron laser pulse,” Phys. Rev. A 97, 053415 (2018).