Some existence theorems for nonlinear problems
Josef Kolomý (1966)
Commentationes Mathematicae Universitatis Carolinae
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Josef Kolomý (1966)
Commentationes Mathematicae Universitatis Carolinae
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Václav Zizler (1967)
Commentationes Mathematicae Universitatis Carolinae
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Ho Duc Viet (1975)
Commentationes Mathematicae Universitatis Carolinae
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