Seasonal Changes in the Character of Fulvic Acids in Lake Kojima. 8<sup>th<sup> International Conference on Wetland Systems for Water Pollution Control. 2002. 1. 580-586
Seasonal Changes in the Character of Fulvic Acids in Lake Kojima, Japan. 8th International Conference on Wetland Systems for Water Pollution Control. 2002. 1, 580-586