@article{RO_2022__56_6_4113_0,
     author = {Shahkooeei, M. and Balf, F. Rezai and Rabbani, M. and Jelodar, M. Fallah},
     title = {Role of flexible data in evaluation productivity and cost efficiency using data envelopment analysis},
     journal = {RAIRO. Operations Research},
     pages = {4113--4127},
     year = {2022},
     publisher = {EDP-Sciences},
     volume = {56},
     number = {6},
     doi = {10.1051/ro/2022181},
     mrnumber = {4515152},
     zbl = {1532.90037},
     language = {en},
     url = {https://www.numdam.org/articles/10.1051/ro/2022181/}
}