1
by Baltzer, Ralf A.
Published 1991
2
by Hoerschelmann, Fred von
Published 1982
3
4
Published 1999
5
Published 2001
6
Published 2000
7
by Przybyla, J?org
Published 1993
8
Published 2006
9
Published 2006
10
by Meese, Herrad
Published 2005
11
by Eismann, Volker
Published 2004
12
by Wingate, Ursula
Published 1994
13
Published 1994
14
by Jacobs, Eberhard
Published 1982
15
16
by Sch?apers, Roland
Published 1986
17
by Sch?apers, Roland
Published 1986
18
by Griesbach, Heinz
Published 1985
19
by Griesbach, Heinz
Published 1985
20
by Guyomard, Irene
Published 1992