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- [2] NITRATES AND DRINKING-WATER WATERSHED 89 : THE FUTURE FOR WATER QUALITY IN EUROPE, VOLS 1 AND 2, 1989, : 23 - 37
- [5] NEW WOFATITES FOR ELIMINATION OF NITRATES FROM DRINKING-WATER CHEMISCHE TECHNIK, 1989, 41 (03): : 131 - 131
- [10] METHEMOGLOBINEMIA FROM INGESTION OF NITRATES IN DRINKING-WATER SOUTH AFRICAN MEDICAL JOURNAL, 1989, 75 (03): : 143 - 143