@article{Knodel1981,
author = {Knodel, J. and Wilson, C.},
title= {The secular increase in fecundity in German village populations: An analysis of reproductive histories of couples married 1750-1899},
year = {1981},
doi = {10.2307/2174835},
journal = {Population studies },
volume = {35},
number = {1},
pages = {53--84},
}