@article{10_1017_S0017089507003710,
     author = {SALVAI, MARCOS},
     title = {ON {THE} {GEOMETRY} {OF} {THE} {SPACE} {OF} {ORIENTED} {LINES} {OF} {THE} {HYPERBOLIC} {SPACE}},
     journal = {Glasgow mathematical journal},
     pages = {357--366},
     year = {2007},
     volume = {49},
     number = {2},
     doi = {10.1017/S0017089507003710},
     url = {http://geodesic.mathdoc.fr/articles/10.1017/S0017089507003710/}
}