@misc{hodak2018testing,
  author = {Hod{\'a}k, R.},
  title = {R\&D and testing of {PEN} scintillator},
  year = {2018},
  note = {Annual report, Praha: {\v{C}}VUT v Praze, {\'U}stav technick{\'e} a experiment{\'a}ln{\'i} fyziky, 2018}
}