Voir la notice de l'article provenant de la source Mathematicac Balkanica website
@article{MABA_2009_23_1-2_a5, author = {N. Sonmez}, title = {The {Internal} {Bisector's} {Slope} and {External} {Bisector's} {Slope} on {Poincare} {Upper} {Half} {Plane}}, journal = {Mathematica balkanica}, pages = {73}, publisher = {mathdoc}, volume = {23}, number = {1-2}, year = {2009}, url = {http://geodesic.mathdoc.fr/item/MABA_2009_23_1-2_a5/} }
N. Sonmez. The Internal Bisector's Slope and External Bisector's Slope on Poincare Upper Half Plane. Mathematica balkanica, Tome 23 (2009) no. 1-2, p. 73. http://geodesic.mathdoc.fr/item/MABA_2009_23_1-2_a5/