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21
Published 1998
Full text available from Agricultural Science Database: 01/01/1999 to present
Electronic
Journal
22
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24
Published 1998
Full text available from Agricultural Science Database: 01/01/2003 to 12/31/2004Full text available from Biological Science Database: 01/01/2003 to 12/31/2004
Full text available from Environmental Science Database: 01/01/2003 to 12/31/2004
Full text available from Agricultural Science Database: 01/01/2006 to present
Full text available from Biological Science Database: 01/01/2006 to present
Full text available from Environmental Science Database: 01/01/2006 to present
Electronic
Journal
25
Full text available from East Europe, Central Europe Database: 01/01/2006 to present
Full text available from Military Database: 01/01/2006 to present
Full text available from Science Database: 01/01/2006 to present
Electronic
Journal
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