@article{JGAA_2016_20_2_a3,
     author = {Sarah Mark and Jeanette McLeod and Mike Steel},
     title = {A navigation system for tree space},
     journal = {Journal of Graph Algorithms and Applications},
     pages = {247--268},
     publisher = {mathdoc},
     volume = {20},
     number = {2},
     year = {2016},
     doi = {10.7155/jgaa.00392},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.7155/jgaa.00392/}
}