@inbook{Preston1978,
author = {Preston, S.H. and Palloni, A.},
title= {Fine-tuning Brass-type mortality estimates with data on ages of surviving children},
year = {1978},
booktitle = {Population Bulletin of the United Nations},
address = {New York},
publisher = {United Nations},
pages = {72--91},
series = {No. 10-1977},
}