@inproceedings{geometricoptimisationonpositivedefinite,
  title = {Geometric optimisation on positive definite matrices for elliptically contoured distributions},
  author = {Suvrit Sra and Reshad Hosseini},
  year = {2013},
  booktitle = {NeurIPS 2013 12},
  url = {http://papers.nips.cc/paper/5169-geometric-optimisation-on-positive-definite-matrices-for-elliptically-contoured-distributions},
}