@article{Perelli-Harris2009b,
author = "Perelli-Harris, B. and Sigle-Rushton, W. and Lappegard, T. and Jasilioniene, A. and DiGuilio, P. and Keizer, R. and Koeppen, K. and Berghammer, C. and Kreyenfeld, M.",
title = "Examining nonmarital childbearing in Europe: How does union context differ across countries?",
year = 2009,
journal = "MPIDR Working Paper",
volume = 021,
pages = "1-42",
month = "Jul",
url = "http://www.demogr.mpg.de/papers/working/wp-2009-021.pdf"
}