Existence theorems for operator equations and nonlinear elliptic boundary-value problems
Walter Petry (1973)
Commentationes Mathematicae Universitatis Carolinae
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Walter Petry (1973)
Commentationes Mathematicae Universitatis Carolinae
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Josef Kolomý (1967)
Commentationes Mathematicae Universitatis Carolinae
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Svatopluk Fučík (1969)
Commentationes Mathematicae Universitatis Carolinae
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