Complex sentence: The same can be said for Karl Dietrich Erdmann's contribution to the 8th edition of the "Gebhardt Handbook for German History" (Gebhardtsches Handbuch zur Deutschen Geschichte), whose viewpoint dominated the interpretation of the events around the German Revolution after 1945.
Split into simpler sentences: The same can be said for Karl Dietrich Erdmann's contribution to the 8th edition of the "Gebhardt Handbook for German History" (Gebhardtsches Handbuch zur Deutschen Geschichte). Nevertheless his viewpoint dominated the interpretation of the events around the German Revolution after 1945.