Comment on “Using multi-level frontiers in DEA models to grade countries/territories” by G.-l. Yang et al. [Journal of Informetrics 10(1) (2016), 238-253]

Comment on “Using multi-level frontiers in DEA models to grade countries/territories” by G.-l. Yang et al. [Journal of Informetrics 10(1) (2016), 238-253]

Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Informetrics - Volume 11, Issue 3, August 2017, Pages 649-654

Mohammad Khoveyni, Robabeh Eslami,