@article{Gerster2008,
author = {Gerster, Mette and Keiding, Niels},
title= {Biological and sociological interpretations of age-adjustment in studies of higher order birth rates},
year = {2008},
doi = {10.4054/DemRes.2008.19.31},
journal = {Demographic Research},
volume = {19},
number = {31},
pages = {1205--1216},
}