TY - JOUR AU - Petersen, Peter AU - Wilhelm, Frederick TI - Examples of Riemannian manifolds with positive curvature almost everywhere JO - Geometry & topology PY - 1999 SP - 331 EP - 367 VL - 3 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.2140/gt.1999.3.331/ DO - 10.2140/gt.1999.3.331 ID - GT_1999_3_1_a13 ER -