@article{Avery2013,
author = {Avery, C. and St. Clair, T. and Levin, M. and Hill, K.},
title= {The 'own children' fertility estimation procedure: A reappraisal},
year = {2013},
doi = {10.1080/00324728.2013.769616},
journal = {Population Studies},
volume = {67},
number = {2},
pages = {171--183},
}