@article{cao_dong_2020, 
  title={Statistical Characteristics of Workers' Productivity and Their Clustering in Cell Production System}, 
  volume={14}, 
  DOI={10.14327/iscm.14.31}, 
  publisher={Japan Management Training Center}, 
  author={Cao, Yuren and Dong, Yanwen}, 
  year={2020}, 
  month={Sep}
  }