BIOTECHNOLOGY LETTERS, vol. 26, no. 14, page. 1173 - 1178, 2004-07
BIOTECHNOLOGY AND APPLIED BIOCHEMISTRY, vol. 37, page. 103 - 107, 2003-04
APPLIED MICROBIOLOGY AND BIOTECHNOLOGY, vol. 59, no. 4-5, page. 523 - 528, 2002-08