By Leffler Michael R.   in Proceedings of the Water Environment Federation

ISSN:1938-6478|2001|9|44-54

Water Environment Federation‎(2001)‎

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By Leffler Michael R.   Harrington Jeffrey   in Proceedings of the Water Environment Federation

ISSN:1938-6478|2001|10|49-61

Water Environment Federation‎(2001)‎

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By Leffler Michael R.   Curtis H.J.   in Proceedings of the Water Environment Federation

ISSN:1938-6478|2006|2|716-728

Water Environment Federation‎(2006)‎

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By Curtis H.J. “Jay”   Leffler Michael R.   in Proceedings of the Water Environment Federation

ISSN:1938-6478|2006|2|880-892

Water Environment Federation‎(2006)‎

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