http://www.sblunwen.com/wxzs/23651.html
http://wap.sciencenet.cn/blog-2961180-1149968.html?mobile=1
https://wenku.baidu.com/view/0ef4325b54270722192e453610661ed9ac51556f.html
https://vdisk.weibo.com/s/BVKdMJoPGIzVa
https://writingcenter.unc.edu/tips-and-tools/literature-reviews/