2
by Jung, Lothar, 1957-
Published 2001
Book
3
by Wright, Andrew, 1937-
Published 1993
Book
6
by Müller, Bernd-Dietrich
Published 1994
Book
7
by Phillips, Sarah
Published 1993
Book
10
by Skopal, Radek
Published 1998
Thesis Manuscript
18
Published 1948
Serial
19
Published 2001
Serial
20
Published 2002
Serial