(Ns{a(B: (NpROBLEMY SEMXI (B:s (NrEFERATIWNYJ SBORNIK (B/s - (NoSKOLKOWA(B, (No(B.(Nb(B.s; (NiNSTITUT NAU^NOJ INFORMACII PO OB]ESTWENNYM NAUKAM an sssrs ((NmOSKWA (B:s (Nb(B. (NI(B,s, 1990)
Keywords: (NsEMXQ (B- (NpROBLEMY SEMXIs