(NfRESKA (B:s (NsTIHI (B/s - (NfILX[TEJN(B, (NmIHAIL qKOWLEWI^s ((NkI[INEW (B:s (NkARTQ mOLDOWENQSK\(B,s, 1968)
Keywords: (NrUSSKAQ PO\ZIQs