@techreport{Andersson2004,
author = {Andersson, G. and Noack, T. and Seierstad, A. and Weedon-Fekjær, H.},
title= {The demographics of same-sex marriages in Norway and Sweden},
year = {2004},
URL = {http://www.demogr.mpg.de/papers/working/wp-2004-018.pdf},
publisher = {Max Planck Institute for Demographic Research},
address = {Rostock},
number = {MPIDR Working Paper, WP 2004-018},
}