1. Yavitz B., Newman W.H., Strategy in Action: The Execution, Politics, and Payoff of Business Planning (New York, NY: The Free Press, 1982), p.7.
2. Chandler A.D., Strategy and Structure: Chapters in the History of the Industrial Enterprise (Cambridge, MA: M.I.T. Press, 1962), p. 235.
3. Sloan A.P., My Years at General Motors (New York, NY: Doubleday, 1963), p. 267.
4. Christensen C.R., Andrews D.R., Bower J.L., Hamermesh R.G., Porter M.E., Business Policy: Text and Cases, 5th Edition (Homewood, IL: Richard D. Irwin, 1982), p. 834.