6
Udgivet 1953
Full text available from Biological Science Database: 01/01/1971 to present
Electronisk Tidsskrift
8
Udgivet 1964
Full text available from Linguistics Database: 01/01/2010 to 01/31/2017
Electronisk Serial
12
Udgivet 1999
Full text available from Social Science Database: 01/01/2017 to present
Electronisk Tidsskrift
13
Udgivet 1989
Full text available from Library Science Database: 01/01/2017 to present
Electronisk Serial
18
Full text available from East Europe, Central Europe Database: 01/01/2006 to present
Electronisk Tidsskrift