@misc{Flaga_Małgorzata_Different,
 author={Flaga, Małgorzata},
 howpublished={online},
 publisher={Wydawnictwo Uniwersytetu Marii Curie-Skłodowskiej},
 language={eng ; pol},
 type={artykuł},
 title={Different routes of demographic changes in former Eastern bloc states at the turn of the 21st century based on the examples of Poland and Ukraine},
 keywords={post-communists states, system transformation, depopulation, natural loss, international migration},
}