@article{GT_2007_11_3_a10,
     author = {Kapovich, Michael},
     title = {Triangle inequalities in path metric spaces},
     journal = {Geometry & topology},
     pages = {1653--1680},
     publisher = {mathdoc},
     volume = {11},
     number = {3},
     year = {2007},
     doi = {10.2140/gt.2007.11.1653},
     url = {http://geodesic.mathdoc.fr/articles/10.2140/gt.2007.11.1653/}
}