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3 Arriaga E.E. Population Analysis with Microcomputers. Vol. II. Software and Documentation. Wash., B.C., November 1994. P.259-264. PAS (IPC ofU.S. Census): http://www.census.gov/ipc/. .: : Readings in Population Research Methodology. Vol. 5. Population Models, Projections and Estimates / Project Editors Bogue D.J., Arriaga E.E., and Anderton D.L. Chicago, 1993. P. 19-102.
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8 Coal A.J. The Calculation of Approximate Intrinsic Rates //Population Index. Vol. 21. 2, April 1955. P. 94-97.