1
2
3
Published: Bonn, 1994.
Book
4
5
6
Published: Frankfurt am Main [u.a.] : Campus-Verl, 2004.
Book
7
Published: Vilsbiburg : Arun, 1991.
Book
8
9
10
Published: Opladen : Leske + Budrich, 1993.
Book
11
12
Published: Bielefeld : Aisthesis-Verl, 1992
Book
13
14