Chen A, Y Hwang and B Shao (2005). “Measurement and Sources of Overall and Input Inefficiencies: Evidences and Implications in Hospital Services.” EJOR 161(2): 447-468.
Chen A, Y Hwang and B Shao (2005). “Measurement and Sources of Overall and Input Inefficiencies: Evidences and Implications in Hospital Services.” EJOR 161(2): 447-468.