1. H. E. McGannon, ed. The Making, Shaping and Treating of Steel, USS Corp., Pittsburgh, PA(1964).
2. R. Ohno and T. Ishida, Rate of evaporation of manganese, copper, tin, chromium and sulphur from molten iron under vacuum,1. Iron Steel Inst. 904 (1968).
3. J. Herbertson, F. D. Dimayuga and R. Harris, Vacuum refining as a process option in recycling aluminum scrap, Recycle and Secondary Recovery of Metals (edited by P. R. Taylor et al. , pp. 97-106). Metals Society AIME, Warrendale, PA (1985).