@ARTICLE{
author={Liu Wanping,Yang Xiaofan,Liu Xinzhi,Stevic Stevo},
year={2014},
title={Part-metric and its applications in discrete systems},
journal={APPLIED MATHEMATICS AND COMPUTATION},
volume={228},
number={},
pages={320-328},
document_type={Article},
} 

@ARTICLE{
author={Liu Wanping,Yang Xiaofan,Stevic Stevo},
year={2011},
title={On a Class of Nonautonomous Max-Type Difference Equations},
journal={ABSTRACT AND APPLIED ANALYSIS},
volume={},
number={},
pages={-},
document_type={Article},
} 

@ARTICLE{
author={Liu Wanping,Yang Xiaofan,Stevic Stevo,Iricanin Bratislav D},
year={2011},
title={Part-Metric and Its Applications to Cyclic Discrete Dynamic Systems},
journal={ABSTRACT AND APPLIED ANALYSIS},
volume={},
number={},
pages={-},
document_type={Article},
} 

@ARTICLE{
author={Liu Wanping,Yang Xiaofan,Iricanin Bratislav D},
year={2010},
title={On Some k-Dimensional Cyclic Systems of Difference Equations},
journal={ABSTRACT AND APPLIED ANALYSIS},
volume={},
number={},
pages={-},
document_type={Article},
}