Voir la notice de l'article provenant de la source Hellenic Digital Mathematics Library
@article{EUG_1989__21_a4, author = {Cheh-Chih Yeh}, title = {Some fixed {Point} {Theorems}}, journal = {E\ensuremath{\upsilon}\ensuremath{\kappa}\ensuremath{\lambda}\ensuremath{\varepsilon}\ensuremath{\acute\iota}\ensuremath{\delta}\ensuremath{\eta}\ensuremath{\varsigma} \ensuremath{\Gamma} }, pages = {47-57}, publisher = {mathdoc}, volume = {21}, year = {1989}, language = {gr}, url = {http://geodesic.mathdoc.fr/item/EUG_1989__21_a4/} }
Cheh-Chih Yeh. Some fixed Point Theorems. Ευκλείδης Γ , Tome 21 (1989), p. 47-57. http://geodesic.mathdoc.fr/item/EUG_1989__21_a4/