Advanced blast furnace operation with hot blast flow control valves H. Tsukiji, K. Wakimoto, H. Nakamura, K. Ishi, I. Ohkouchi and S. Shimogoryo Rev. Met. Paris, 94 3 (1997) 333-340 Published online: 17 January 2017 DOI: 10.1051/metal/199794030333