Kotter, J. 1995. "Leading Change: Why Transformation Efforts Fail." Harvard Business Review. 73(2): 59-67. Accessed 21 May 2014. Available at: http://hbr.org/2007/01/leading-change-why-transformation-efforts-fail/ar/1.
This source is considered a primary reference for the Organizing Business and Enterprises to Perform Systems Engineering article.
The full text of this source is available at the Harvard Business Review website.