@article{Eerola_2012,
title={Statistical analysis of life history calendar data},
volume={25},
ISSN={1477-0334},
url={http://dx.doi.org/10.1177/0962280212461205},
DOI={10.1177/0962280212461205},
number={2},
journal={Statistical Methods in Medical Research},
publisher={SAGE Publications},
author={Eerola,
Mervi and Helske,
Satu},
year={2012},
month=nov,
pages={571–597} }