1
published 2012
Journal
2
3
published 1958
Journal
4
published 1956
Journal
5
published 1951
Journal
6
published 2010
Kostenfrei, Verlag
Frontdoor-Url
Electronic Journal
7
published 2009
Kostenfrei, Verlag
Frontdoor-Url
Electronic Journal
8
published 2009
Kostenfrei, Verlag
Frontdoor-Url
Electronic Journal
9
10
published 2005
Frontdoor-Url
Kostenfrei, Verlag
Electronic Journal
12
13
14
16
17
18
published 2002
Kostenfrei, Verlag
Kostenfrei, Verlag
Electronic Journal
19
published 2001
Kostenfrei, Verlag
Electronic Journal
20
published 2001
Kostenfrei, Verlag
Frontdoor-Url
Electronic Journal