@article{steyerberg2009,
  title={Assessing the Performance of Prediction Models},
  author={Ewout W. Steyerberg and Andrew J. Vickers and Nancy R. Cook and Thomas Alexander Gerds and Mithat Gönen and Nancy A. Obuchowski and Michael Pencina and Michael W. Kattan},
  year={2009},
  journal={Epidemiology},
  doi={10.1097/ede.0b013e3181c30fb2},
  url={https://doi.org/10.1097/ede.0b013e3181c30fb2}
}