1. J.Čížek, J. Valenta, P. Hruška, O. Melikhova, I. Procházka, M. Novotný, J. Bulíř
    Origin of green luminescence in hydrothermally grown ZnO single crystals
    Applied Physics Letters 106 (2015) 251902(1)-251902(4).
  2. I. Procházka, J. Čížek, J. Valenta, V. Havránek, P. Hruška, M. Novotný, J. Lančok
    Characterisation of Defects in ZnO Implanted by Hydrogen
    Defect and Diffusion Forum 365 (2015) 49-54.