@book{ 0-1330581776, title = {Phase II calderon process to produce direct reduced iron research and development project: quarterly technical progress report, January 1, 2005-March 31, 2005}, author = {Calderon, Albert}, address = {Springfield, Va.}, publisher = {National Technical Information Service}, year = {2005}, language = {English}, url = {https://katalog.ub.tu-freiberg.de/Record/0-1330581776} }