@article{Trussell1983,
author = {Trussell, J. and Bloom, D.E.},
title= {Estimating the co-variates of age at marriage and first birth},
year = {1983},
doi = {10.2307/2174506},
journal = {Population Studies},
volume = {37},
number = {3},
pages = {403--416},
}