@article{Katus2009,
author = {Katus, K. and Puur, A. and Põldma, A. and Sakkeus, L.},
title= {Fertility development in the Baltic countries since 1990: Recent changes in the context of long-term trends},
year = {2009},
journal = {Yearbook of Population Research in Finland},
volume = {44},
pages = {5--19},
}