TY - JOUR AU - Huang, Hui-Min AU - Quintero, Richard AU - Albus, James C2 - Advances in Control & Dynamic Systems DA - 1991-07-01 LA - en PB - Advances in Control & Dynamic Systems PY - 1991 TI - A Reference Model, Design Approach, and Development Illustration toward Hierarchical Real-Time System Control for Coal Mining Operations UR - https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=820357 ER -