Lower curvature bounds, Toponogov's theorem, and bounded topology Uwe Abresch (1985) Annales scientifiques de l'École Normale Supérieure
Lower curvature bounds, Toponogov's theorem, and bounded topology. II U. Abresch (1987) Annales scientifiques de l'École Normale Supérieure
Lp pinching and compactness theorems for compact Riemannian manifolds. Deane Yang (1992) Forum mathematicum
Lp-pinching and the geometry of compact Riemannian manifolds. M. Le Courturier, Gilles F. Robert (1994) Commentarii mathematici Helvetici