On contractive mappings in metric spaces
Milan R. Tasković (1978)
Commentationes Mathematicae Universitatis Carolinae
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Milan R. Tasković (1978)
Commentationes Mathematicae Universitatis Carolinae
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Le Van Hot (1981)
Commentationes Mathematicae Universitatis Carolinae
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Zuhair M. Nashed (1969)
Commentationes Mathematicae Universitatis Carolinae
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