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Assessing the performance of exchange traded funds in the energy sector: a hybrid DEA multiobjective linear programming approach.
Ann Oper Res. 2022;313(1):341-366. doi: 10.1007/s10479-021-04323-6. Epub 2022 Jan 23.
Ann Oper Res. 2022.
PMID: 35095151
Free PMC article.
Assessing the impact of COVID-19 on the efficiency of Portuguese state-owned enterprise hospitals.
Henriques CO, Gouveia MC.
Henriques CO, et al.
Socioecon Plann Sci. 2022 Dec;84:101387. doi: 10.1016/j.seps.2022.101387. Epub 2022 Jul 31.
Socioecon Plann Sci. 2022.
PMID: 35937707
Free PMC article.
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