[Approaches and methods of fertility estimation in demographic projections]

The author describes methods of fertility estimation within demographic projections. He concludes that both period analysis and cohort follow-up are important to a thorough study of the birth rate of a population. "The second part of the article is dedicated to the procedures used for disaggregating the integral [of] full fertility, and extrapolating the incompleted fertility of a given cohort when formulating birthrate hypotheses." The geographical scope is worldwide. (SUMMARY IN ENG AND RUS)