Sarah Williams

2015
Lim V, Deahl E, Rubel L, Williams S.  2015.  Local Lotto: Mathematics and Mobile Technology to Study the Lottery. Cases on Technology Integration in Mathematics Education. :43-67.
2006
Ratti C.  2006.  Mobile landscapes: using location data from cell phones for urban analysis. Environment and Planning B: Planning and Design. 33(5):727-748.