@article{Bollen2001,
author = {Bollen, K.A. and Glanville, J.L. and Stecklov, G.},
title= {Socioeconomic status and class in studies of fertility and health in developing countries},
year = {2001},
doi = {10.1146/annurev.soc.27.1.153},
journal = {Annual Review of Sociology},
volume = {27},
pages = {153--185},
}