"Women Are Key to Global Economy". Hillary Clinton’s speech at the Asia-Pacific Economic Cooperation 2011 CEO Summit, www.thedailybeast.com. September 16, 2011.
"Computing Science: Achievements and Challenges". Edsger Dijkstra's keynote address at the ACM Symposium on Applied Computing in San Antonio, Texas, www.cs.utexas.edu. March 1, 1999.
"The Inefficient Stock Market - What Pays Off And Why". Book byRobert Haugen, Chapter 5, Predicting Future Stock Returns with the Expected-Return Factor Model, p. 56, 1999.
"Campaign 2000: Promoting the National Interest" by Condoleezza Rice in Foreign Affairs, Volume 79, No. 1, www.foreignaffairs.com. January/February 2000.