@article{104910, author = {Zden\v ek Hedrl\'\i n}, title = {Two theorems concerning common fixed point of commutative mappings}, journal = {Commentationes Mathematicae Universitatis Carolinae}, volume = {003}, year = {1962}, pages = {32-36}, zbl = {0111.01301}, mrnumber = {0159896}, language = {en}, url = {http://dml.mathdoc.fr/item/104910} }
Hedrlín, Zdeněk. Two theorems concerning common fixed point of commutative mappings. Commentationes Mathematicae Universitatis Carolinae, Tome 003 (1962) pp. 32-36. http://gdmltest.u-ga.fr/item/104910/
On common fixed points of commutative mappings, Commentationes Mathematicae Universitatis Carolinae, 2, 4 (1961). (1961)