•
平台:
ProQuest Agricultural & Environmental Science Database
(Available from 1993/01/01 until 1997/10/31.)
ProQuest Earth, Atmospheric & Aquatic Science Database
(Available from 1993/01/01 until 1997/10/31.)
ProQuest SciTech Premium Collection
(Available from 1993/01/01 until 1997/10/31.)