TY - CONF AU - Huang, Hui-Min C2 - Proceedings of the Fourth Conference on the Use of Computers in the Coal Industry, Morgantown, WV DA - 1990-04-30 LA - en PB - Proceedings of the Fourth Conference on the Use of Computers in the Coal Industry, Morgantown, WV PY - 1990 TI - Hierarchical Real-Time Control System for Use with Coal Mining Automation UR - https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=820333 ER -