@article{Katus2007,
author = {Katus, K. and Puur, A. and Põldma, A. and Sakkeus, L.},
title= {First union formation in Estonia, Latvia, and Lithuania: Patterns across countries and gender},
year = {2007},
doi = {10.4054/DemRes.2007.17.10},
URL = {http://www.demographic-research.org},
journal = {Demographic Research},
volume = {17},
number = {10},
pages = {247--300},
}