@article{LJM_2007_25_a1,
     author = {W.-Y. Hsiang and E. Straume},
     title = {Kinematic geometry of triangles and the study of the three-body problem},
     journal = {Lobachevskii journal of mathematics},
     pages = {9--130},
     publisher = {mathdoc},
     volume = {25},
     year = {2007},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/LJM_2007_25_a1/}
}