Measuring biodiversity performance: A conditional efficiency measurement approach. - George Emm. Halkos; Nickolaos G. Tzeremes (Environ. Model. Softw., 2010)

Measuring economic journals' citation efficiency: a data envelopment analysis approach. - George Emm. Halkos; Nickolaos G. Tzeremes (Scientometrics, 2011)

Industry performance evaluation with the use of financial ratios: An application of bootstrapped DEA. - George Emm. Halkos; Nickolaos G. Tzeremes (Expert Syst. Appl., 2012)

A conditional directional distance function approach for measuring regional environmental efficiency: Evidence from UK regions. - George Emm. Halkos; Nickolaos G. Tzeremes (Eur. J. Oper. Res., 2013)

Evaluating alternative Frequentist inferential approaches for optimal order quantities in the newsvendor model under Exponential demand. - George Emm. Halkos; Ilias S. Kevork (Int. Trans. Oper. Res., 2013)

Analyzing and visualizing the synergistic impact mechanisms of climate change related costs. - George Emm. Halkos; Kyriaki D. Tsilika (Appl. Math. Comput., 2014)

Weight assurance region in two-stage additive efficiency decomposition DEA model: an application to school data. - George Emm. Halkos; Nickolaos G. Tzeremes; Stavros A. Kourtzidis (J. Oper. Res. Soc., 2015)

Regional sustainability efficiency index in Europe: an additive two-stage DEA approach. - George Emm. Halkos; Nickolaos G. Tzeremes; Stavros A. Kourtzidis (Oper. Res., 2015)

Composite indicators in evaluating tourism performance and seasonality. - Christina Bampatsou; George Emm. Halkos; Olga-Helen Astara (Oper. Res., 2022)