@article{RO_2021__55_6_3617_0,
     author = {Sarkar, Subhadip},
     title = {Performance measurement using a novel directional distance function based super efficiency model and neighbourhood theory},
     journal = {RAIRO. Operations Research},
     pages = {3617--3638},
     year = {2021},
     publisher = {EDP-Sciences},
     volume = {55},
     number = {6},
     doi = {10.1051/ro/2021165},
     mrnumber = {4349704},
     zbl = {1486.90124},
     language = {en},
     url = {https://www.numdam.org/articles/10.1051/ro/2021165/}
}