@article{JMLR:v11:christoforou10a,
  author  = {Christoforos Christoforou and Robert Haralick and Paul Sajda and Lucas C. Parra},
  title   = {Second-Order Bilinear Discriminant Analysis},
  journal = {Journal of Machine Learning Research},
  year    = {2010},
  volume  = {11},
  number  = {21},
  pages   = {665--685},
  url     = {http://jmlr.org/papers/v11/christoforou10a.html}
}