(NnEFTQNAQ PROMY[LENNOSTX s{as - (NlISI^KIN(B,(Ns(B. (Nm(B.s (NsTEPAN mAKSIMOWI^s ((Nm(B.s (NnEDRAs, 1969)
Keywords: (NnEFTQNAQ PROMY[LENNOSTXs -- (Ns{as