1. Design thinking;Brown;Harvard Business Review,2008
2. The long nose of innovation (revised);Buxton,2008
3. Issues and techniques in touch-sensitive tablet input;Buxton,1985
4. An empirical comparison of pie vs. linear menus;Callahan,1988
5. Metaphor and the cognitive representation of computing systems;Carroll;IEEE Transactions on Systems, Man and Cybernetics,1982