@inbook{Keyfitz1986,
author = {Keyfitz, N.},
title= {The family that does not reproduce itself},
year = {1986},
doi = {10.2307/2807898},
booktitle = {Below-Replacement Fertility in Industrial Societies: Causes, Consequences, Policies. Supplement to Vol. 12, Population and Development Review},
pages = {139--154},
}