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1
Published 1987
Full text available from Agricultural Science Database: 07/01/1999 to 01/31/2009Full text available from Earth, Atmospheric & Aquatic Science Database: 07/01/1999 to 01/31/2009
Full text available from Environmental Science Database: 07/01/1999 to 01/31/2009
Full text available from Research Library: 07/01/1999 to 01/31/2009
Full text available from Science Database: 07/01/1999 to 01/31/2009
Electronic
Journal