KOREAN JOURNAL OF CHEMICAL ENGINEERING, vol. 23, no. 3, page. 428 - 434, 2006-05
ENVIRONMENTAL TECHNOLOGY, vol. 23, no. 8, page. 839 - 847, 2002-08
JOURNAL OF HAZARDOUS MATERIALS, vol. 80, no. 1-3, page. 259 - 269, 2000-12-30