@article{cox1972,
  title={Regression Models and Life-Tables},
  author={D. R. Cox},
  year={1972},
  journal={Journal of the Royal Statistical Society Series B (Statistical Methodology)},
  doi={10.1111/j.2517-6161.1972.tb00899.x},
  url={https://doi.org/10.1111/j.2517-6161.1972.tb00899.x}
}