<hi xmlns="http://www.tei-c.org/ns/1.0" rend="bold">Chung, Cindy K. / Pennebaker, James W.</hi> (2007): "The psychological function of function words", in: Konrad Fiedler (ed.): <hi xmlns="http://www.tei-c.org/ns/1.0" rend="italic">Social communication</hi>. Frontiers of social psychology. New York: Psychology Press 343-359.