King type modification of Meyer-König and Zeller operators based on the q-integers. - Ogün Dogru; Mediha Örkcü (Math. Comput. Model., 2009)

Statistical approximation by a modification of q-Meyer-König and Zeller operators. - Ogün Dogru; Mediha Örkcü (Appl. Math. Lett., 2010)

Weighted statistical approximation by kantorovich type q-Szász-Mirakjan operators. - Mediha Örkcü; Ogün Dogru (Appl. Math. Comput., 2011)

q-Szász-Mirakyan-Kantorovich type operators preserving some test functions. - Mediha Örkcü; Ogün Dogru (Appl. Math. Lett., 2011)

A neutral cross efficiency approach for basic two stage production systems. - H. Hasan Örkcü; Volkan Soner Özsoy; Mediha Örkcü; Hasan Bal (Expert Syst. Appl., 2019)

An optimistic-pessimistic DEA model based on game cross efficiency approach. - Mediha Örkcü; Volkan Soner Özsoy; H. Hasan Örkcü (RAIRO Oper. Res., 2020)

A minimax approach for selecting the overall and stage-level most efficient unit in two stage production processes. - Volkan Soner Özsoy; Mediha Örkcü; H. Hasan Örkcü (Ann. Oper. Res., 2021)

A simplistic approach without epsilon to choose the most efficient unit in data envelopment analysis. - Volkan Soner Özsoy; H. Hasan Örkcü; Mediha Örkcü (Expert Syst. Appl., 2021)