平台:
EBSCOhost Academic Search Complete
(Available from 2000/08/01 until 2000/08/31.)
EBSCOhost STM Source
(Available from 2000/08/01 until 2000/08/31.)
平台:
EBSCOhost Academic Search Complete
(Available from 2001/01/01 until 2005/09/30.)
EBSCOhost STM Source
(Available from 2001/01/01 until 2005/09/30.)