@article{Bengtsson2006,
author = {Bengtsson, T. and Dribe, M.},
title= {Deliberate control in a natural fertility population: Southern Sweden, 1766–1864},
year = {2006},
doi = {10.1353/dem.2006.0030},
journal = {Demography},
volume = {43},
number = {4},
pages = {727--746},
}