Kroupa, M., Granja, C. H., Janout, Z., Králik, M., Krejčí, F., Owens, A., Pospíšil, S., Quarati, F., Šolc, J., Vobecký, M. Wide Energy Range Gamma-Ray Calibration Source. Journal of Instrumentation. 2011, 6(Nov), 1-12. ISSN 1748-0221. E-ISSN 1748-0221. Dostupné z: https://doi.org/10.1088/1748-0221/6/11/T11002