TY - CONF AU - John Horst C2 - Proceedings of the 8th IEEE International Symposium on Intelligent Control, Chicago, IL DA - 1993-01-01 LA - en PB - Proceedings of the 8th IEEE International Symposium on Intelligent Control, Chicago, IL PY - 1993 TI - Coal extraction using RCS UR - https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=820452 ER -