"Speech by SEC Staff: The Evolving Mutual Fund Landscape: Adapting to the Challenges of Change". Remarks by Paul F. Roye, www.sec.gov. December 06, 2001.
"Built to Learn: The inside story of how Rockwell Collins became a true learning organization". Book by Cliff Purington, Chris Butler, and Sarah Fister Gale, p. 171, 2003.