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Proceedings of the National Academy of Sciences of the United States of America logoLink to Proceedings of the National Academy of Sciences of the United States of America
. 1962 Nov;48(11):1915–1917. doi: 10.1073/pnas.48.11.1915

ON THE CHARACTERISTIC OF POSITIVELY-PINCHED RIEMANNIAN MANIFOLDS*

Marcel Berger 1
PMCID: PMC221096  PMID: 16591017

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1915

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