Development of high-performance coal gasification technology for high ash fusion temperature coals : сборник научных трудов / M. Ashizawa, S. Hara, K. Ichikawa, 1993. - 41 p. - Текст : непосредственный.
Development of high-performance gasification technology for high ash fusion coals : Study on determination method of flux adding rate and coal blending ratio to operate gasifier at high efficiency / M.Ashizawa,J.Inumaru,K.Ichikawa и др., 1995. - 31 p. - Текст : непосредственный.