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@article{IM_1981__65_142848, author = {Peter Li and Jia Qing Zhong}, title = {Pinching {Theorem} for the {First} {Eigenvalue} on {Positively} {Curved} {Manifolds.}}, journal = {Inventiones mathematicae}, pages = {221--226}, publisher = {mathdoc}, volume = {65}, year = {1981}, zbl = {0496.53031}, url = {http://geodesic.mathdoc.fr/item/IM_1981__65_142848/} }
Peter Li; Jia Qing Zhong. Pinching Theorem for the First Eigenvalue on Positively Curved Manifolds.. Inventiones mathematicae, Tome 65 (1981), pp. 221-226. http://geodesic.mathdoc.fr/item/IM_1981__65_142848/