Clayton Christensen, Curtis W. Johnson, Michael B. Horn (2010). “Disrupting Class, Expanded Edition: How Disruptive Innovation Will Change the Way the World Learns”, p.7, McGraw Hill Professional
"Olivia Thirlby Talks Loving Her 'Flawed' Character In ‘Nobody Walks,’ More ‘Dredd’ & Her 5 Favorite Performances" by Jen Vineyard, www.indiewire.com. October 18, 2012.