@article{JMLR:v17:14-229,
  author  = {Dan Shen and Haipeng Shen and J. S. Marron},
  title   = {A General Framework for Consistency of Principal Component Analysis},
  journal = {Journal of Machine Learning Research},
  year    = {2016},
  volume  = {17},
  number  = {150},
  pages   = {1--34},
  url     = {http://jmlr.org/papers/v17/14-229.html}
}