Bucket wheel excavator study / Richard H. Garrett, Benjamin Costello, III, and Michael D. Loy ; prepared by Skelly and Loy ; prepared for U.S. Department of Energy, Assistant Secretary for Energy Technology, Division of Fossil Fuel Extraction. (HCP/T ; 77-C-01-8914-01)
Bucket wheel excavator study / Richard H. Garrett, Benjamin Costello, III, and Michael D. Loy ; prepared by Skelly and Loy ; prepared for U.S. Department of Energy, Assistant Secretary for Energy Technology, Division of Fossil Fuel Extraction.