21
Published 1994
Book
22
Published 1979
Book
24
by Frankenberg, Gisela von, 1925-
Published 1990
Book
25
by Hippmann, Fritz R.
Published 1997
Book
30
Published 1982
Book
34
35
Published 1996
Book
36
Published 1996
Book
37
by Herding, Klaus, 1939-
Published 1970
Book
38
Published 1990
Book
39
Published 1988
Book
40
Published 1988
Book