(NrADIOAKTIWNOSTX W LE^EBNYH WODAH I GRQZAH (B/s - (NbERTENSON(B, (NlEW bERNARDOWI^s ((NsANKT(B-(NpETERBURG (B:s (Nk(B.(Nl(B. (NrIKKER(B,s, 1914)
(NbIBLIOGR(B.: (NS(B. 180-196 s
Keywords: (NrADIOAKTIWNOSTX s