Michael Kramer
发表
Bernd Krutzsch,
D. E. Webster,
S. Pischinger,
1995
.
Manfred Fortnagel,
Jorg Abthoff,
Michael Kramer,
1988
.
Frank Duvinage,
Jorg Abthoff,
Markus Paule,
1998
.
Michael Kuhn,
Michael Kramer,
Jorg Abthoff,
1998
.
Andrew Peter Walker,
Bernd Krutzsch,
A. P. Walker,
1995
.