LIMNOLOGY AND OCEANOGRAPHY, vol. 50, no. 2, page. 578 - 586, 2005-03
ENVIRONMENTAL SCIENCE & TECHNOLOGY, vol. 39, no. 21, page. 8427 - 8433, 2005-11-01
MACROMOLECULES, vol. 35, no. 13, page. 5116 - 5122, 2002-06-18