@ARTICLE{
author={Atef Mohammed,Liu Sifeng,Moslem Sarbast,Pamucar Dragan S},
year={2024},
title={New covering techniques and applications utilizing multigranulation fuzzy rough sets},
journal={ARTIFICIAL INTELLIGENCE REVIEW},
volume={57},
number={10},
pages={-},
document_type={Article},
} 

@ARTICLE{
author={Stanujkic Dragisa,Zavadskas Edmundas Kazimieras,Liu Sifeng,Karabasevic Darjan,Popovic Gabrijela},
year={2017},
title={Improved OCRA Method Based on the Use of Interval Grey Numbers},
journal={JOURNAL OF GREY SYSTEM},
volume={29},
number={4},
pages={49-60},
document_type={Article},
}