@article{Moultrie2008,
author = {Moultrie, T.A. and Dorrington, R.},
title= {Sources of error and bias in methods of fertility estimation contingent on the P/F Ratio in a time of declining fertility and rising mortality},
year = {2008},
doi = {10.4054/DemRes.2008.19.46},
journal = {Demographic Research},
volume = {19},
number = {46},
pages = {1635--1662},
}