TY - JOUR AU - Brendle, Simon AU - Schoen, Richard TI - Manifolds with 1/4-pinched curvature are space forms JO - Journal of the American Mathematical Society PY - 2009 SP - 287 EP - 307 VL - 22 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.1090/S0894-0347-08-00613-9/ DO - 10.1090/S0894-0347-08-00613-9 ID - 10_1090_S0894_0347_08_00613_9 ER -