By Larry Leistritz F.   Leitch J.   Bangsund D.   in Journal of Environmental Management

ISSN:0301-4797|66|4|465-473

Academic Press‎(2002)‎

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By Bangsund D.A.   Leistritz F.L.   Leitch J.A.   in Journal of Environmental Management

ISSN:0301-4797|56|1|35-43

Academic Press‎(1999)‎

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