TY - JOUR A1 - Smith, K A1 - Rainville, J A1 - Lesher, E A1 - Diedrich, D A1 - McKnight, D A1 - Sofield, R T1 - Fractionation of Fulvic Acid by Iron and Aluminum Oxides-Influence on Copper Toxicity to Ceriodaphnia dubia Y1 - 2014/10/21 N1 - R829500 N1 - R829515 VL - 48 IS - 20 SP - 11934 EP - 11943 ER -