Research on electro-hydraulic composite drive winch and energy recovery system for mobile crane oleh Xianggen Xu, Xianggen Xu, Tianliang Lin, Tianliang Lin, Haoling Ren, Haoling Ren, Tong Guo, Tong Guo, Zhongshen Li, Zhongshen Li, Cheng Miao, Cheng Miao