平台:
Emerald Backfiles
(Available from 1966 volume: 1 issue: 1 until 1997 volume: 39 issue: 6.)
Emerald Journal
(Available from 2002 until 2003. Available from 2006 until 2007.)
Emerald Backfiles
(Available from 1966 volume: 1 issue: 1 until 1997 volume: 39 issue: 6.)
Emerald Journal
(Available from 2002 until 2003. Available from 2006 until 2007.)