@article{Retherford1978,
author = {Retherford, R.D. and Cho, L.J.},
title= {Age-parity-specific birth rates and birth probabilities from census or survey data on own children},
year = {1978},
doi = {10.1080/00324728.1978.10412816},
journal = {Population Studies},
volume = {32},
number = {3},
pages = {567‒581},
}