@conference{152086,
  author = {Hui-Min Huang},
  title = {Hierarchical Real-Time Control System for Use with Coal Mining Automation},
  year = {1990},
  month = {1990-04-30},
  publisher = {Proceedings of the Fourth Conference on the Use of Computers in the Coal Industry, Morgantown, WV},
  url = {https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=820333},
  language = {en},
}