4
by Richard, Birgit
Published 1995
Fink

6
by Marx-Weber, Magda
Published 1999
Schöningh

8
by Georgiades, Thrasybulos G.
Published 1985
Vandenhoeck & Ruprecht

12
by Stephan, Rudolf
Published 1973
Vandenhoeck & Ruprecht

15
by Schmitz, Arnold
Published 1996
Schöningh

19
by Arnold, Denis Midgley
Published 1989
Vandenhoeck & Ruprecht

20
by Faulstich, Werner
Published 2003
Fink