2
by Werth-Regendanz, Alex
Published 1931
Vandenhoeck & Ruprecht

4
by Finger, Jürgen
Published 2009
Vandenhoeck & Ruprecht

5
by Groeben, Hans von der
Published 1979
Vandenhoeck & Ruprecht

6
by Barraclough, Geoffrey
Published 1964
Vandenhoeck & Ruprecht