@article{Marini1981,
author = {Marini, M.M. and Hodsdon, P.J.},
title= {Effects of the Timing of Marriage and First Birth on the Spacing of Subsequent Births},
year = {1981},
doi = {10.2307/2060946},
journal = {Demography},
volume = {18},
number = {4},
pages = {529--548},
}