[[1] G. Courtois G. Besson S. Gallot, Entropies et rigidités des espaces localment symétriques de courbure strictement négative, GAFA, 5, (1995), 731–79910.1007/BF01897050]Search in Google Scholar
[[2] G. Courtois G. Besson S. Gallot, Rigidity of amalgamated products in negative curvature, Journ. of Differerential Geometry, 79, (2008), 335–38710.4310/jdg/1213798182]Search in Google Scholar
[[3] D. Burago V.A. Zallager, Geometric Inequalities, Springer Series in Soviet Mathematics, Springer-Verlag, Berlin, 198810.1007/978-3-662-07441-1]Search in Google Scholar
[[4] K. Shiohama K. Grove, A generalized sphere theorem, Annals of Math., 106, (1977), 201–21110.2307/1971164]Search in Google Scholar
[[5] G. Reviron, Espaces de longueur d’entropie majorée: rigidité topologique, adhérence des variétés, noyau de la chaleur,Thèse de Doctorat de Mathématiques de l’Université Joseph Fourier, Grenoble, 2005]Search in Google Scholar
[[6] G. Reviron, Rigidité topologique sous une hypothèsed’entropiemajorée et applications, Commentarii Math. Helv., 83, (2008), 815–84610.4171/CMH/144]Search in Google Scholar
[[7] L. Sabatini, Volume Comparison in presence of a Gromov-Hausdorff ε− approximation I, Math. Z., 274, (2013), 1–2010.1007/s00209-012-1054-4]Search in Google Scholar
[[8] L. Sabatini, Volume Comparison without curvature assumptions, Math Z., 282, (2016), 691-71410.1007/s00209-015-1560-2]Search in Google Scholar