Retraction notices

Research on the investment efficiency based on grey correlation-DEA model

Type
Retraction
Notice date
6/10/2023 0:00
Journal
Annals of Operations Research
Publisher
Springer - Nature Publishing Group
Notice DOI
10.1007/s10479-021-04341-4
Original paper DOI
10.1007/s10479-021-04341-4

Reasons

Matching venue names

Name match only, not an authoritative journal identifier.