Author,Title,Edition,Publisher,Year,Series,Number,ISBN,ISSN,URL "International Symposium on Process Gas Handling and Cleaning and Twigge-Molecey, C. and Metallurgical Society of CIM. Non-Ferrous Pyrometallurgy Section. Executive Committee","Process gas handling and cleaning : proceedings of the International Symposium on Process Gas Handling and Cleaning, Halifax, August 20-24, 1989",,Pergamon Press,1989,Proceedings of the Metallurgical Society of the Canadian Institute of Mining and Metallurgy,,0080372864,,https://cir.nii.ac.jp/crid/1130282270856873856