TY - JOUR T1 - Changes in fulvic acid redox state through the oxycline of a permanently ice-covered Antarctic lake JF - Aquatic Sciences Y1 - 2004 A1 - Fulton, J A1 - Diane M. McKnight A1 - Christine M. Foreman A1 - Rose M. Cory A1 - Stedmon, C A1 - Blunt, E VL - 66 ER -