Exact methods for variable selection in principal component analysis: Guide functions and pre-selection

@article{Pacheco2013ExactMF,
  title={Exact methods for variable selection in principal component analysis: Guide functions and pre-selection},
  author={Joaqu{\'i}n A. Pacheco and Silvia Casado and Santiago Porras},
  journal={Computational Statistics & Data Analysis},
  year={2013},
  volume={57},
  pages={95-111}
}