Retraction notices

Construction of College English Teaching Resource Database under the Background of Big Data

Type
Retraction
Notice date
9/16/2022 0:00
Journal
Journal of Physics: Conference Series
Publisher
IOP Publishing
Notice DOI
10.1088/1742-6596/1744/3/032251
Original paper DOI
10.1088/1742-6596/1744/3/032004

Reasons