Self-Study System Evaluation of Oral English Based on Limit Theory
- Type
- Retraction
- Notice date
- 8/2/2023 0:00
- Journal
- Mathematical Problems in Engineering
- Publisher
- Hindawi
- Notice DOI
- 10.1155/2023/9768741
- Original paper DOI
- 10.1155/2022/2523088
Reasons
- Concerns/Issues about Data
- Concerns/Issues about Results and/or Conclusions
- Concerns/Issues about Referencing/Attributions
- Concerns/Issues about Peer Review
- Investigation by Journal/Publisher
- Investigation by Third Party
- Computer-Aided Content or Computer-Generated Content
- Unreliable Results and/or Conclusions