overlapping windows. In Proceedings of the 17th Annual ACM Symposium on User interface Software and Technology (Santa Fe, NM, USA, October 24–27, 2004). UIST '04. ACM Press, New York, NY, 193-196. External links Laws of Action by Shumin Zhai CrossY interface by Apitz and Guimbretière Dragicevic's Fold'n'Drop technique Don't Click It - A clickless proof-of-concept interface User interface techniques