WATER ENVIRONMENT RESEARCH, vol. 73, no. 3, page. 295 - 300, 2001-05
BIOTECHNOLOGY AND BIOENGINEERING, vol. 73, no. 1, page. 12 - 24, 2001-04-05
WATER SCIENCE AND TECHNOLOGY, vol. 43, no. 1, page. 217 - 224, 2001-01
WATER RESEARCH, vol. 34, no. 7, page. 2160 - 2170, 2000-05
BIORESOURCE TECHNOLOGY, vol. 73, no. 1, page. 21 - 27, 2000-05
WATER SCIENCE AND TECHNOLOGY, vol. 41, no. 12, page. 79 - 84, 2000-01