Jahanshahloo GR, RK Matin and AH Vencheh (2004). “On Return to Scale of Fully Efficient DMUs in Data Envelopment Analysis under Interval Data.” Appl Math Comput 154(1): 31-40.

Jahanshahloo GR, RK Matin and AH Vencheh (2004). “On Return to Scale of Fully Efficient DMUs in Data Envelopment Analysis under Interval Data.” Appl Math Comput 154(1): 31-40.

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