@article{Cheung2008,
author = {Cheung, S.L.K. and Robine, J.M. and Caselli, G.},
title= {The use of cohort and period data to analyze change in normal longevity in low mortality countries},
year = {2008},
journal = {Genus},
volume = {LXIV},
number = {1-2},
pages = {101--129},
}