@book{efron1993i,
	title = {An Introduction to the Bootstrap},
	author = {Efron, Bradley and Tibshirani, Robert J.},
	year = {1993},
	date = {1993},
	publisher = {Springer US},
	doi = {10.1007/978-1-4899-4541-9},
	url = {http://dx.doi.org/10.1007/978-1-4899-4541-9}
}
  
@article{xgboost,
	title = {xgboost: Extreme Gradient Boosting},
	author = {Chen, Tianqi and He, Tong and Benesty, Michael and Khotilovich, Vadim and Tang, Yuan and Cho, Hyunsu and Chen, Kailong and Mitchell, Rory and Cano, Ignacio and Zhou, Tianyi and Li, Mu and Xie, Junyuan and Lin, Min and Geng, Yifeng and Li, Yutian and Yuan, Jiaming},
	year = {2023},
	date = {2023},
	url = {https://CRAN.R-project.org/package=xgboost}
}
