@article{Tapales2015,
author = {Tapales, A. and Finer, L.},
title= {Unintended pregnancy and the changing demography of American women, 1987–2008},
year = {2015},
doi = {10.4054/DemRes.2015.33.45},
journal = {Demographic Research},
volume = {33},
number = {45},
pages = {1257--1270},
}