Warden, Pete, “Data Ownership and the Future of Data”, presentation to class on the Social Data Revolution, School of Information, University of California – Berkeley, November 18, 2014, https://www.youtube.com/watch?v=N_C00zQpcqw&feature=youtube; Crawford, Harriet, Sumer and the Sumerians (Cambridge: Cambridge University Press, 2004), p. 89.
