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- [4] THE PERSULFATE OXIDATION OF FULVIC-ACIDS ZEITSCHRIFT FUR PFLANZENERNAHRUNG UND BODENKUNDE, 1983, 146 (04): : 409 - 414
- [6] HUMIC AND FULVIC-ACIDS AS INDICATORS OF SOIL AND WATER-POLLUTION WATER AIR AND SOIL POLLUTION, 1979, 12 (03): : 319 - 329
- [7] ADSORPTION OF FULVIC-ACIDS BY HYDROUS OXIDES ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 1979, (APR): : 79 - 79