@article{penalizedprincipalcomponentanalysisusing,
  title = {Penalized Principal Component Analysis Using Smoothing},
  author = {Rebecca M. Hurwitz and Georg Hahn},
  year = {2023},
  eprint = {2309.13838},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2309.13838v2},
}