Aquila/El Encino

ENGINEERING AND MINING JOURNAL. PELLETS FOR PUEBLO ANDMONTERREY. NOV., 1980, PP. 17-19.ENGINEERING AND MINING JOURNAL. HYL AND HYLSA: ALFA'S STEELDIVISION MINES ORE, PRODUCES PELLETS, AND SELLS DRTECHNOLOGY. NOV., 1980, PP. 20-22.ENGINEERING AND MINING JOURNAL. MEXICO-GROWING INDUSTRYWILL TAP EXTENSIVE IRON RESOURCES. NOV., 1974,PP. 98-99.ENGINEERING AND MINING JOURNAL. HYLSA BOOSTS PELLETPRODUCTION TO 1.5 MILLION MTPY. NOV., 1974, PP. 160-161DEPARTMENT OF STATE. AIRGRAM A-16. MAJOR MINERAL DEVELOP--MENTS. DEC. 15, 1981, 5PP.PRICE, J. F. AND J. E. APARICIO. MAKING IRON OXIDE PELLETSFOR DIRECT REDUCTION: THE HYL PROCESS. MINING ENGINE--ERING. APRIL, 1981, PP. 401-406.