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.