Strengthening upper bound for the number of critical levels of nonlinear functionals
Svatopluk Fučík, Jindřich Nečas, Jiří Souček, Vladimír Souček (1972)
Commentationes Mathematicae Universitatis Carolinae
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Svatopluk Fučík, Jindřich Nečas, Jiří Souček, Vladimír Souček (1972)
Commentationes Mathematicae Universitatis Carolinae
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Commentationes Mathematicae Universitatis Carolinae
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Svatopluk Fučík (1971)
Commentationes Mathematicae Universitatis Carolinae
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