@inbook{Schoen2019, author = {Schoen, R.}, title= {On the implications of age-specific fertility for sibships and birth spacing}, year = {2019}, doi = {10.1007/978-3-319-93227-9 9}, editor = {Schoen, R.}, booktitle = {Analytical family demography}, address = {Cham}, publisher = {Springer Nature}, pages = {201--214}, }