@article{Congdon1994,
author = {Congdon, P.},
title= {Analysing Mortality in London: Life-Tables with Frailty},
year = {1994},
doi = {10.2307/2348345},
journal = {Journal of the Royal Statistical Society. Series D (The Statistician)},
volume = {43},
number = {2},
pages = {277--308},
}