Peter H. Merkl, German Unification in the European Context, University Park: Pennsylvania State University, 1993, 2nd ed. 2004, ISBN0-271-02566-2, p. 128: "Conservative West German deputy Alfred Dregger, of the right-wing CDU Stahlhelm faction".
Stephen S. Szabo, The Changing Politics of German Security, New York: St. Martin's, 1990; ISBN0-312-05228-6 refers to him as "a leading conservative" and says his reaction "was typical of that of the Gaullists" but that the Stahlhelm Fraktion was "[c]entered in the CSU but including key CDU figures like Alfred Dregger": pp. 107, 117–18.
Elliot Yale Neaman, A Dubious Past: Ernst Jünger and the Politics of Literature after Nazism, Berkeley: University of California, 1999; ISBN0-520-21628-8, p. 224.
chronikderwende.de
Alfred Dregger, Chronik der Wende, RBB; accessed 24 August 2018.(in German).
