1. Kromm C . 2014. “Outside Spending Reaches $7 Million in N.C. State Races.” https://www.facingsouth.org. The Institute for Southern Studies. 3 Nov 2014. (https://www.facingsouth.org/2014/11/outside-spending-reaches-7-million-in-nc-state-rac). 6 Oct 2016.
2. Effects of message repetition and position on cognitive response, recall, and persuasion.
3. Can Repeating an Advertisement More Frequently Than the Competition Affect Brand Preference in a Mature Market?
4. Wallstin B . 2014. “Spending in Shaheen-Brown Race Reaches Historic Proportions.” http://nhpr.org/. New Hampshire Public Radio. 31 Oct 2014. (http://nhpr.org/post/spending-shaheen-brown-race-reaches-historic-proportions). 6 Oct 2016.
5. Sragow D. 2014. “Op-Ed: What Do You Call 7 lbs. of Campaign Mail for 3 Voters?.” Los Angeles Times. Available at: http://www.latimes.com/opinion/op-ed/la-oe-sragow-campaign-mail-20140708-story.html [Accessed 22 Jan. 2016].