Spravochnik po zashite ot islouchenia protiazenikh isotochnikof: B.R. Bergelson, G.A. Zorikoev: (Handbook of radiation shielding of extended sources). Atomizdat, Moscow, 1965, 176 pages, price: 1 rouble 42 kop.

@inproceedings{Kovarik1966SpravochnikPZ,
  title={Spravochnik po zashite ot islouchenia protiazenikh isotochnikof: B.R. Bergelson, G.A. Zorikoev: (Handbook of radiation shielding of extended sources). Atomizdat, Moscow, 1965, 176 pages, price: 1 rouble 42 kop.},
  author={Karel Kovarik},
  year={1966}
}