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EBSCOhost Academic Search Complete
(Available from 2002/01/01 until 2008/11/30.)
EBSCOhost Environment Complete
(Available from 2002/01/01 until 2008/11/30.)
EBSCOhost OmniFile Full Text Select
(Available from 2005/11/01 until 2008/11/30.)
EBSCOhost STM Source
(Available from 2002/01/01 until 2008/11/30.)
ProQuest Agricultural & Environmental Science Database
(Available from 2002/11/01 volume: 1 issue: 6 until 2007/07/31 volume: 6 issue: 4.)
ProQuest SciTech Premium Collection
(Available from 2002/11/01 volume: 1 issue: 6 until 2007/07/31 volume: 6 issue: 4.)