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- [3] DETERMINATION OF FLUORINE IN ORGANIC-COMPOUNDS BY PRECIPITATION TITRATION ZEITSCHRIFT FUR CHEMIE, 1989, 29 (01): : 35 - 35
- [6] REMOVAL OF HUMIC-ACID AND TOXIC ORGANIC-COMPOUNDS BY IRON PRECIPITATION ENVIRONMENTAL PROGRESS, 1988, 7 (04): : 262 - 269