(NtIRATRONNYE RELEJNYE USTROJSTWAs - (NdMITRENKO(B,(Nl(B. (Np(B.s (NlEONID pETROWI^s ((Nm(B.s (N|NERGIQs, 1973)
Keywords: (NrELE TIRATRONNYEs