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Chun Cao 1
@article{AFM_1996_21_2_a2, author = {Chun Cao}, title = {The chordal norm of discrete {M\"obius} groups in several dimensions}, journal = {Annales Fennici Mathematici}, pages = {271--287}, publisher = {mathdoc}, volume = {21}, number = {2}, year = {1996}, language = {en}, url = {http://geodesic.mathdoc.fr/item/AFM_1996_21_2_a2/} }
Chun Cao. The chordal norm of discrete Möbius groups in several dimensions. Annales Fennici Mathematici, Tome 21 (1996) no. 2, pp. 271-287. http://geodesic.mathdoc.fr/item/AFM_1996_21_2_a2/