Ma, Z. ., T. . Xia, B. . Tang, and Y. . Huang. “Prediction of Remaining Life of Relay Protection Equipment Using Transformer-Holt Model”. Distributed Generation &Amp; Alternative Energy Journal, vol. 41, no. 01, Feb. 2026, pp. 101–122, doi:10.13052/dgaej2156-3306.4115.