Stamping of front-end three-dimensional skin of China electric multiple units
GU Zheng-wei, LYU Meng-meng, ZHANG Wen-xue, LEI Jiao-jiao, XU Hong
Journal of Jilin University(Engineering and Technology Edition) . 2017, (3): 869 -875 .  DOI: 10.13229/j.cnki.jdxbgxb201703025