1
4
published 2011
...2076-3417...
Kostenfrei, Verlag
Frontdoor-Url
Electronic Journal
7
...2076-3417...
Kostenfrei
E-Article
9
11
...2076-3417...
Kostenfrei
E-Article
12
13
16
18
19
...2076-3417...
Kostenfrei, Resolving-System
Volltext, Kostenfrei, Verlag
E-Book Special Print
20