Ilya D. Rosenberg, Ken Perlin. The UnMousePad: an interpolating multi-touch force-sensing input pad. ACM Trans. Graph., 28(3):65, 2009. [doi]
@article{RosenbergP09,
title = {The UnMousePad: an interpolating multi-touch force-sensing input pad},
author = {Ilya D. Rosenberg and Ken Perlin},
year = {2009},
doi = {10.1145/1531326.1531371},
url = {http://doi.acm.org/10.1145/1531326.1531371},
researchr = {https://researchr.org/publication/RosenbergP09},
cites = {0},
citedby = {0},
journal = {ACM Trans. Graph.},
volume = {28},
number = {3},
pages = {65},
}