@article{Anderton1985,
author = {Anderton, D.L. and Bean, L.L.},
title= {Birth spacing and fertility limitation: A behavioral analysis of a 19th-century frontier population},
year = {1985},
doi = {10.2307/2061176},
journal = {Demography},
volume = {22},
number = {2},
pages = {169--183},
}