@article{JMLR:v11:perry10a,
  author  = {Patrick O. Perry and Art B. Owen},
  title   = {A Rotation Test to Verify Latent Structure},
  journal = {Journal of Machine Learning Research},
  year    = {2010},
  volume  = {11},
  number  = {18},
  pages   = {603--624},
  url     = {http://jmlr.org/papers/v11/perry10a.html}
}