1
Electronic
Archived Material
Archivdatenbank (Archivportal-D)
Archivdatenbank (Kalliope Verbundkatalog)
2
Electronic
Archived Material
Archivdatenbank (Archivportal-D)
Archivdatenbank (Kalliope Verbundkatalog)
4
7
9
Electronic
Article
Presumably Free Access
Volltext (Resolving-System)
10
11
12
13
Electronic
Article
Volltext (Resolving-System)
14