平台:
DOAJ Directory of Open Access Journals
(Available from 2021.)
Karger Journal Archive
(Available from 1973 volume: 1 issue: 1 until 2017.)
Karger Open Access Journals
(Available from 2021/01/01 volume: 48 issue: 1.)
DOAJ Directory of Open Access Journals
(Available from 2021.)
Karger Journal Archive
(Available from 1973 volume: 1 issue: 1 until 2017.)
Karger Open Access Journals
(Available from 2021/01/01 volume: 48 issue: 1.)