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@article{10_4064_cm_36_1_81_86, author = {W. A. Kirk}, title = {Caristi's fixed point theorem and metric convexity}, journal = {Colloquium Mathematicum}, pages = {81--86}, publisher = {mathdoc}, volume = {36}, number = {1}, year = {1976}, doi = {10.4064/cm-36-1-81-86}, language = {en}, url = {http://geodesic.mathdoc.fr/articles/10.4064/cm-36-1-81-86/} }
W. A. Kirk. Caristi's fixed point theorem and metric convexity. Colloquium Mathematicum, Tome 36 (1976) no. 1, pp. 81-86. doi : 10.4064/cm-36-1-81-86. http://geodesic.mathdoc.fr/articles/10.4064/cm-36-1-81-86/
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