@inbook{Frejka2017,
author = {Frejka, T.},
title= {Childlessness in the United States},
year = {2017},
doi = {10.1007/978-3-319-44667-7_8},
editor = {Kreyenfeld, M.},
editor = {Konietzka, D.},
booktitle = {Childlessness in Europe: Contexts, causes, and consequences},
address = {Cham},
publisher = {Springer},
pages = {159--179},
}