His Protection of information in computer systems, 1975: t.p. (Dr. David D. Clark, of MIT's Project MAC)

At the nexus of cybersecurity and public policy, 2014: t.p. (David Clark)

Wikipedia, viewed on Jan. 2. 2015 (David D. Clark; David Dana "Dave" Clark (born April 7, 1944) is an American computer scientist who has led the development of the Internet since the mid-1970s. He currently works a Senior Research Scientist at MIT's Computer Science and Artificial Intelligence Laboratory)

International relations in the cyber age, 2018: ECIP title page (David D. Clark) data view (David D. Clark is a Senior Research Scientist at the MIT Computer Science and Artificial Intelligence Laboratory)