@techreport{feragen:tech:2012,
  title = {A geometric framework for statistics on trees},
  author = {Feragen, Aasa and Nielsen, Mads and Hauberg, S{\o}ren and Lo, Pechin and de Bruijne, Marleen and Lauze, Francois},
  month = jan,
  number = {11/02},
  institution = {Department of Computer Science, University of Copenhagen},
  year = {2012}
}