@article{01353093,
title = {Examples of Riemannian manifolds with positive curvature almost everywhere.},
journal = {Geometry \& Topology},
volume = {3},
year = {1999},
pages = {331-367},
doi = {10.2140/gt.1999.3.331},
zbl = {0963.53020},
language = {en},
url = {http://dml.mathdoc.fr/item/01353093}
}
Petersen, Peter; Wilhelm, Frederick. Examples of Riemannian manifolds with positive curvature almost everywhere.. Geometry & Topology, Tome 3 (1999) pp. 331-367. doi : 10.2140/gt.1999.3.331. http://gdmltest.u-ga.fr/item/01353093/