@article{Gortfelder2020,
author = {Gortfelder, M. and Puur, A.},
title= {Survival and sex composition of offspring: Individual-level responses in the quantum and tempo of childbearing during the demographic transition},
year = {2020},
doi = {10.1080/00324728.2020.1721736},
volume = {74},
number = {2},
pages = {161--177},
}