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The Mountain Pass Theorem: Variants, Generalizations and Some Applications/en-ca/the-mountain-pass-theorem-variants-generalizations-and-some-applications/E40B89BB-6569-460F-8772-2CCBBDE2659E.htmlE40B89BB-6569-460F-8772-2CCBBDE2659E
The Mountain Pass Theorem: Variants, Generalizations and Some Applications