Yangguang LuZhiyong LiuQingfei MinA digital twin-enabled value stream mapping approach for production process reengineering in SMEs.764-782202134Int. J. Comput. Integr. Manuf.7-8https://doi.org/10.1080/0951192X.2021.1872099db/journals/ijcim/ijcim34.html#LuLM21