@article{Clayton1978,
author = {Clayton, D.},
title= {A Model for Association in Bivariate Life Tables and its Application in Epidemiological Studies of Familial Tendency in Chronic Disease Incidence},
year = {1978},
doi = {10.1093/biomet/65.1.141},
journal = {Biometrika},
volume = {65},
number = {1},
pages = {141--151},
}