@article{Espenshade1994,
author = {Espenshade, T.J.},
title= {Can immigration slow U.S. population aging?},
year = {1994},
doi = {10.2307/3325496},
URL = {http://dx.doi.org/10.2307/3325496},
volume = {13},
number = {4},
pages = {759},
}