WATER RESEARCH, vol. 37, no. 10, page. 2467 - 2477, 2003-05
WATER RESEARCH, vol. 37, no. 9, page. 2228 - 2232, 2003-05
BIOTECHNOLOGY AND BIOENGINEERING, vol. 78, no. 2, page. 147 - 156, 2002-04-20
TRANSACTIONS OF THE ASAE, vol. 45, no. 1, page. 257 - 260, 2002-01
BIOTECHNOLOGY AND BIOENGINEERING, vol. 75, no. 5, page. 521 - 529, 2001-12-05
BIOTECHNOLOGY LETTERS, vol. 23, no. 24, page. 2041 - 2045, 2001-12
WATER RESEARCH, vol. 34, no. 1, page. 349 - 353, 2000-01