XU, Jin, Xian DING, Zhu ZHANG, and Lang CHEN. “Application of Double Q Wavelet-Based Sparse Decomposition to Fault Feature Extraction of Wind Turbine Planetary Gearbox”. Engineering Transactions 69, no. 4 (October 4, 2021): 353–371. Accessed June 9, 2025. https://et3.ippt.pan.pl/index.php/et/article/view/1326.