@article{Lutz2006,
author = {Lutz, W. and Skirbekk, V. and Testa, M.R.},
title= {The low-fertility trap hypothesis: Forces that may lead to further postponement and fewer births in Europe},
year = {2006},
doi = {10.1553/populationyearbook2006s115},
journal = {Vienna Yearbook for Population Research},
volume = {2006},
pages = {167--192},
}