@article{05251547,
title = {Common fixed point theorems for four mappings with some weak conditions of commutativity.},
journal = {Novi Sad Journal of Mathematics},
volume = {36},
year = {2006},
pages = {75-86},
zbl = {1142.54375},
language = {en},
url = {http://dml.mathdoc.fr/item/05251547}
}
Turkoglu, Duran; Altun, Ishak; Fisher, Brian. Common fixed point theorems for four mappings with some weak conditions of commutativity.. Novi Sad Journal of Mathematics, Tome 36 (2006) pp. 75-86. http://gdmltest.u-ga.fr/item/05251547/