@book{JS11,
editor={Jorge, Joaquim and Samavati, Faramarz},
title={Sketch-based Interfaces and Modeling},
publisher={Springer London},
year={2011},
isbn={978-1-84882-811-7},
doi={10.1007/978-1-84882-812-4},
url={http://dx.doi.org/10.1007/978-1-84882-812-4},
numpages={402}
}