@article{YJOR_2020_30_4_a4,
     author = {Nomita Pachar and Anshu Gupta and P C Jha},
     title = {Bi- {Level} {Programming} {DEA} {Approach} for {Efficiency} {Evaluation:} a {Case} {Study} of {Indian} {Electronics} {Retail} {Stores}},
     journal = {Yugoslav journal of operations research},
     pages = {461 },
     publisher = {mathdoc},
     volume = {30},
     number = {4},
     year = {2020},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/YJOR_2020_30_4_a4/}
}