%0 Journal Article %A Gérard Besson %A Gilles Courtois %A Sylvestre Gallot %T Hyperbolic manifolds, amalgamated products and critical exponents %J Comptes Rendus. Mathématique %D 2003 %P 257-261 %V 336 %N 3 %I Elsevier %R 10.1016/S1631-073X(02)00019-5 %G en %F CRMATH_2003__336_3_257_0