1. ‘2010 world direct reduction statistics’. http://www.midrex.com (accessed 18 August 2011).
2. Koros PJ: Proc. Conf. AISTech 2005, Charlotte, NC, USA, May 2005, Association for Iron & Steel Technology, Vol. 1, 395–402.
3. Jones JAT: Proc. 56th Electric Furnace Conf., New Orleans, LA, USA, November 1998, ISS, Vol. 56, 457–478