83 Janßen, “Unter falscher Flagge.” Ernst Fraenkel, who presided over Calic's doctoral examination, had responded indignantly in 1969 to an earlier version of the accusation regarding the degree: “Dr. Calic's doctoral title is only ‘unexplained’ for those who take a skeptical stance toward the restitution of injustice which is granted to the victims of National Socialism.” See BA-Koblenz NL Fraenkel N 1274, vol. 49, letter from Fraenkel to Bracher, Oct. 30, 1969. Janßen's suggestion that Calic invented his imprisonment seems highly unlikely: he had met his friend Gregoire there, and Gregoire would surely have objected to such a false claim. Janßen does not seem to have made an attempt to check this fact with Gregoire, who is not quoted in the article—even though he was still alive in 1979 and Janßen had questioned other sources about Calic's past. In 2014, Sven Felix Kellerhoff reported that, in late 1961, Calic revealed to the Stasi an escape route from East to West Berlin, but the evidence he has presented in support of this claim only shows that, at worst, Calic's betrayal was indirect and careless rather than direct and malicious; see Kellerhoff, “Geschichtsfalscher verriet Fluchtweg an die Stasi,” Die Welt, March 9, 2014. Other documents in the Stasi archive (Bundesbeauftragter für die Stasi-Unterlagen, BStU), show that a few years later, Calic declined to work as a Stasi IM when approached by several officers; see BStU MfS Allg. P 6117/74, report, April 18, 1971; HA XX AP Nr. 22.217/92, handwritten note, Feb. 20, 1974.