"The editors have undoubtely succeeded in building on the previous high standard: The new volumes again represent an exemplary edition and are an indispensable source for anyone interested in West German Foreign and European policies during the crucial year of 1989." Dr. Werner Bührer in: Journal of European Integration History, 1/2020, 177-178
Daniela Taschler, Tim Szatkowski, Christoph Johannes Franzen, Institut für Zeitgeschichte München-Berlin.