@inproceedings{essl2009sandwichdemo,
	abstract = {Two-sided pressure input is common in everyday interactions such as grabbing, sliding, twisting, and turning an object held between thumb and index finger. We describe and demonstrate a research prototype which allows for twosided multitouch sensing with continuous pressure input at interactive rates and we explore early ideas of interaction techniques that become possible with this setup. The advantage of a two-sided pressure interaction is that it enables high degree-of-freedom input locally. Hence rather complex, yet natural interactions can be designed using little finger motion and device space.},
	title = {Squeezing the Sandwich: A Mobile Pressure-Sensitive Two-Sided Multi-Touch Prototype},
	author = {Essl, Georg and Rohs, Michael and Kratz, Sven},
	booktitle = {Demonstration at the 22nd Annual ACM Symposium on User Interface Software and Technology (UIST), Victoria, BC, Canada},
	year = {2009},
	papertype = {demo}
}