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List of Articles جواد گرامی Open Access Article Abstract Page Full-Text 1 - Non-Convex Cost and Revenue Efficiency Analysis in Two-Stage Networks and Its Application to Iranian Airlines جواد گرامی محمد رضا مظفری پریسا کامیاب Open Access Article Abstract Page Full-Text 2 - The Semi-Additive Production Technology in Presence Flexible Measures in DEA J. Gerami Open Access Article Abstract Page Full-Text 3 - A new non-radial DEA-R model to measure the effects of undesirable outputs on the efficiency of production units جواد گرامی