@ARTICLE{
author={Altun Ishak,Rakocevic Vladimir R},
year={2010},
title={Ordered cone metric spaces and fixed point results},
journal={COMPUTERS & MATHEMATICS WITH APPLICATIONS},
volume={60},
number={5},
pages={1145-1151},
document_type={Article},
} 

@ARTICLE{
author={Altun Ishak,Damjanovic Bosko,Djoric Dragan},
year={2010},
title={Fixed point and common fixed point theorems on ordered cone metric spaces},
journal={APPLIED MATHEMATICS LETTERS},
volume={23},
number={3},
pages={310-316},
document_type={Article},
}