@ARTICLE{
author={Stevic Stevo,Tollu Durhasan T},
year={2019},
title={Solvability of eight classes of nonlinear systems of difference equations},
journal={MATHEMATICAL METHODS IN THE APPLIED SCIENCES},
volume={42},
number={12},
pages={4065-4112},
document_type={Article},
} 

@ARTICLE{
author={Stevic Stevo,Tollu Durhasan T},
year={2019},
title={Solvability and semi-cycle analysis of a class of nonlinear systems of difference equations},
journal={MATHEMATICAL METHODS IN THE APPLIED SCIENCES},
volume={42},
number={10},
pages={3579-3615},
document_type={Article},
}