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@article{MAN_1995__303_4_165369, author = {Xianzhe Dai and Guofang Wei}, title = {A comparison-estimate of {Topogonov} type for {Ricci} curvature.}, journal = {Mathematische Annalen}, pages = {297--306}, publisher = {mathdoc}, volume = {303}, number = {4}, year = {1995}, zbl = {0834.53035}, url = {http://geodesic.mathdoc.fr/item/MAN_1995__303_4_165369/} }
Xianzhe Dai; Guofang Wei. A comparison-estimate of Topogonov type for Ricci curvature.. Mathematische Annalen, Tome 303 (1995) no. 4, pp. 297-306. http://geodesic.mathdoc.fr/item/MAN_1995__303_4_165369/