@article{YJOR_2022_32_2_a2,
     author = {Koushik Das},
     title = {Sufficiency and {Duality} of {Set-Valued} {Fractional} {Programming} {Problems} via {Second-Order} {Contingent} {Epiderivative}},
     journal = {Yugoslav journal of operations research},
     pages = {167 },
     publisher = {mathdoc},
     volume = {32},
     number = {2},
     year = {2022},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/YJOR_2022_32_2_a2/}
}