Kafi, A., Daneshian, B., Rostamy-Malkhalifeh, M. and Rostamy-Malkhalifeh, M. (2020) “Forecast of the efficiency confidence interval of decision-making units in data envelopment analysis”, Nexo Scientific Journal, 33(02), pp. 431–445. doi: 10.5377/nexo.v33i02.10782.