"The author examines the development of radio and the increase in newspaper circulation — He discovers that the growth figures are higher in the communist countries of East Europe than in the non-communist regions of East Europe or in the highly developed communist regions." (Jean-Marie Van Bol, Abdelfattah Fakhfakh: The use of mass media in the developing countries. Brussels: CIDESA, 1971 Nr. 786, topic code 070)