@article{Frejka2008,
author = {Frejka, T. and Westoff, C.F.},
title= {Religion, religiousness and fertility in the US and in Europe},
year = {2008},
doi = {10.1007/s10680-007-9121-y},
journal = {European Journal of Population},
volume = {24},
number = {1},
pages = {5--31},
}