@article{JMLR:v6:fiori05a,
  author  = {Simone Fiori},
  title   = {Quasi-Geodesic Neural Learning Algorithms Over the Orthogonal Group: A Tutorial},
  journal = {Journal of Machine Learning Research},
  year    = {2005},
  volume  = {6},
  number  = {26},
  pages   = {743--781},
  url     = {http://jmlr.org/papers/v6/fiori05a.html}
}