1. Scenario Planning Literature Review;Yoe,2004
2. Scenario building and scenario planning: state of the art and prospects of evolution;Martelli;Futures Res. Q. Summer,2001
3. Thinking About the Unthinkable;Kahn,1962
4. Competitive Advantage;Porter,1985
5. The Art of the Long View: Planning for a Future in an Uncertain World;Schwartz,1991