https://arxiv.org/pdf/1404.1100.pdf

2020
https://habr.com/ru/post/507618/
2019
Serrano - Principal Component Analysis (PCA)
    https://www.youtube.com/watch?v=g-Hb26agBFg
2014
Shlens - A Tutorial on PCA
    https://arxiv.org/pdf/1404.1100.pdf