PIP: "[This] contribution is...aimed at the age structure of migration movement, based on the relationship between the district of birth and the district of the current place of residence. The objective of the contribution is, first and foremost, to document the interdistrict variability of the age structure of migrants and the net migration, depending on age. Another objective...is to prove that the assessment of the age structure of migration in its regional variability can be used to define the basic evolutionary migration stages and turning points. A typology of Czech districts with respect to their long-term migration development is one of the results of the contribution." (EXCERPT)