@article{Riffe2015,
author = {Riffe, T.},
title= {The force of mortality by years lived is the force of increment by years left in stationary populations},
year = {2015},
doi = {10.4054/DemRes.2015.32.29},
journal = {Demographic Research},
volume = {32},
number = {29},
pages = {827−834},
}