@article{Renshaw2006,
author = {Renshaw, A.E. and Haberman, S. },
title= {A cohort-based extension to the Lee-Carter model for mortality reduction factors},
year = {2006},
doi = {10.1016/j.insmatheco.2005.12.001},
journal = {Insurance: Mathematics and Economics },
volume = {38},
pages = {556--570},
}