@inbook{Buckles2019,
author = {Buckles, K. and Guldi, M.E. and Schmidt, L.},
title= {Fertility trends in the United States, 1980–2017: The role of unintended births},
year = {2019},
doi = {10.3386/w25521},
booktitle = {Bureau of Economic Research (NBER Working Paper 25521)},
address = {Cambridge},
publisher = {National},
}