@article{05827502,
title = {\'Ciri\'c's fixed point theorem in a cone metric space.},
journal = {The Journal of Nonlinear Sciences and its Applications},
volume = {3},
year = {2010},
pages = {302-308},
zbl = {1204.54038},
language = {en},
url = {http://dml.mathdoc.fr/item/05827502}
}
Samet, Bessem. Ćirić's fixed point theorem in a cone metric space.. The Journal of Nonlinear Sciences and its Applications, Tome 3 (2010) pp. 302-308. http://gdmltest.u-ga.fr/item/05827502/