"Lent states as his purpose to " 1) concisely background the issues and form of the debate in its evolution during the past decade and a half; 2) briefly critique the literature of the controversy; 3) provide a comprehensive bibliography of books, monographs, documents and periodicals that deal with the issue; and 4) list the major conferences, symposia and meetings on any aspect of the debate up to 1980." (Eleanor Blum, Frances G. Wilhoit: Mass media bibliography. 3rd ed. Urbana: University of Illinois Press, 1990 Nr. 247)