@article{Westoff1957,
author = {Westoff, C.F. and Mishler, E.G. and Kelly, E.L.},
title= {Preferences in size of family and eventual fertility twenty years after},
year = {1957},
doi = {10.1086/222079},
journal = {American Journal of Sociology},
volume = {62},
number = {5},
pages = {491--497},
}