1. J. Vackář, O. Šipr, A. Šimůnek
    Relationship between atomically related core levels and ground-state properties of solids: First-principles calculations
    Physical Review B 77 (2008) 045112-1-045112-6.
  2. J. Drahokoupil, O. Šipr, A. Šimůnek
    Element-specific gap in the p states for ternary semiconductors CuGaSe2 and ZnGeAs2 via alignment of x-ray emission and x-ray absorption spectra
    Journal of Physics: Condensed Matter 20 (2008) 155206(1)-155206(6).
  3. A. Šimůnek, J. Vackář
    Hardness of Covalent and Ionic Crystals: First-Principle Calculations
    Physical Review Letters 96 (2006) 085501/1-085501/4.
  4. O. Šipr, A. Šimůnek, J. Vackář, G. Daba, F. Rocca
    Connection between spectral features of B K edge XANES of minerals and the local structure
    Physics and Chemistry of Glasses 47 (2006) 412-418.