1
by Luomanen, Petri
Published 1991
Vandenhoeck und Ruprecht

2
by Pannenberg, Wolfhart
Published 1982
Vandenhoeck & Ruprecht

3
by Smend, Rudolf
Published 1997
Vandenhoeck & Ruprecht

4
by Frankemölle, Hubert
Published 1994
Schöningh