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平台:
JSTOR Life Sciences Collection
(Available from 1976/01/01 volume: 1 issue: 1. Most recent 4 year(s) not available.)
ProQuest Agricultural & Environmental Science Database
(Available from 2003/01/01 volume: 53 issue: 2. Most recent 1 year(s) not available.)
ProQuest Biological Science Database
(Available from 2003/01/01 volume: 53 issue: 2. Most recent 1 year(s) not available.)
ProQuest SciTech Premium Collection
(Available from 2003/01/01 volume: 53 issue: 2. Most recent 1 year(s) not available.)
SpringerLink Journals - AutoHoldings
(Available from 2016/01/01 volume: 70 issue: 1 until 2017/12/29 volume: 72 issue: 1. Available from 1976/03/01 volume: 1 issue: 1 until 1996/12/01 volume: 39 issue: 6.)
SpringerLink Online Journals Archive
(Available from 1976 until 1996.)