@inproceedings{feragen:iccv:2011,
  title = {Means in spaces of tree-like shapes},
  author = {Feragen, Aasa and Hauberg, S{\o}ren and Nielsen, Mads and Lauze, Francois},
  booktitle = {Computer Vision (ICCV), 2011 IEEE International Conference on},
  publisher = {IEEE},
  month = nov,
  pages = {736 -746},
  year = {2011}
}