(NsISTEMY RADIOSWQZI(B: (NKURSOWOE PROEKTIROWANIEs (Nu^EBNOE POSOBIE DLQ STUDENTOW WUZOWs - (NmORDUHOWI^(B,(Nl(B. (Ng(B.s (NlEONID gRIGORXEWI^s; (NsTEPANOW(B,(Na(B. (Np(B.s (NaLEKSANDR pETROWI^s ((Nm(B.s (NrADIO I SWQZXs, 1987)