It has come to our attention that the majority of the content in the title paper [1] was copied from the Marini et al. [2] without citation. The editorial board and editorial office consider the concerns sufficiently serious that we have decided to retract the paper.
MDPI is a member of the Committee on Publication Ethics and takes the responsibility to enforce strict ethical policies and standards very seriously. To ensure the addition of only high-quality scientific works to the field of scholarly publication, [1] is retracted and shall be marked accordingly. We apologize to the readership of Sensors for any inconvenience caused.
References
- Muminov, A.; Na, D.; Lee, C.; Kang, H.K.; Jeon, H.S. RETRACTED: Modern Virtual Fencing Application: Monitoring and Controlling Behavior of Goats Using GPS Collars and Warning Signals. Sensors 2019, 19, 1598. [Google Scholar] [CrossRef] [PubMed]
- Marini, D.; Llewellyn, R.; Belson, S.; Lee, C. Controlling Within-Field Sheep Movement Using Virtual Fencing. Animals 2018, 8, 31. [Google Scholar] [CrossRef] [PubMed]
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