@article{Lloyd2000,
author = {Lloyd, C.B. and Kaufman, C.E. and Hewet, P.},
title= {The Spread of Primary Schooing in Sub-Saharan Africa: Implications for Fertility Change},
year = {2000},
doi = {10.1111/j.1728-4457.2000.00483.x},
journal = {Population and  Development Review},
volume = {26},
number = {3},
pages = {483--515},
}