(NpROCESS STARENIQ NASELENIQs (NDEMOGRAFI^ESKOE ISSLEDOWANIE (B: (NPER(B. (NS POLXSK(B.s - (NrOSSET(B,(N|(B.s (N|DWARDs ((Nm(B.s (NsTATISTIKAs, 1968)
Keywords: (NsTARENIE I STAROSTXs -- (NsTATISTI^ESKIE METODY IZU^ENIQs; (NsTATISTIKA NASELENIQs