Zhang, Y. . “RETRACTED: Non-Local Clustering via Sparse Prior for Sports Image Denoising [EAI Endorsed Scal Inf Syst (2022), Online First]”. EAI Endorsed Transactions on Scalable Information Systems, vol. 9, no. 4, Apr. 2022, p. e26, doi:10.4108/eai.8-4-2022.173794.