@inproceedings{Puur2011,
author = "Puur, A., Sakkeus,L., Põldma, A.",
title = "Intergenerational family constellations: differentials across sub-populations in the GGS countries",
year = 2011,
booktitle = "First User Conference of the Generations and Gender Programme",
month = "May",
url = "http://www.demografia.hu/letoltes/ggp/A2_3.pdf"
}