@article{RO_2020__54_3_719_0,
     author = {Kaffash, Sepideh and Aktas, Emel and Tajik, Mohammad},
     title = {The impact of oil price changes on efficiency of banks: {An} application in the {Middle} {East} oil exporting countries using {SORM-DEA}},
     journal = {RAIRO - Operations Research - Recherche Op\'erationnelle},
     pages = {719--748},
     publisher = {EDP-Sciences},
     volume = {54},
     number = {3},
     year = {2020},
     doi = {10.1051/ro/2019009},
     mrnumber = {4074002},
     zbl = {1443.90246},
     language = {en},
     url = {http://www.numdam.org/articles/10.1051/ro/2019009/}
}