*how do scantrons work http://www.howeverythingworks.org/page1.php?QNum=1529
*content factory response: http://www.wikihow.com/Cheat-on-a-Scantron-Test
*Hans Haacke. Moma Poll. 1970. http://www.arts.ucsb.edu/faculty/budgett/algorithmic_art/haacke.html
== References ==