@article{kroupa2011wide,
  author = {Kroupa, M. and Granja, C. and Janout, Z. and Kr{\'a}l{\'i}k, M. and Krej{\v{c}}{\'i}, F. and Owens, A. and Posp{\'i}{\v{s}}il, S. and Quarati, F. and {\v{S}}olc, J. and Vobeck{\'y}, M.},
  title = {Wide Energy Range Gamma-Ray Calibration Source},
  journal = {Journal of Instrumentation},
  publisher = {IOP Publishing},
  volume = {6},
  number = {11},
  pages = {T11002-T11002},
  year = {2011},
  doi = {10.1088/1748-0221/6/11/T11002},
  issn = {1748-0221}
}