Voas, D. and P. Williamson (2000). "An evaluation of the combinatorial optimisation approach to the creation of synthetic microdata." International Journal of Population Geography 6: 349-366.

Voas, D. and P. Williamson (2000). "The scale of dissimilarity: concepts, measurement and an application to socio-economic variation across England and Wales." Transactions of the Institute of British Geographers 25: 465-481.

Voas, D. and P. Williamson (2001). "The diversity of diversity: a critique of geodemographic classification." AREA 33(1): 63-76.

Voas, D. and P. Williamson (2001). "Evaluating goodness-of-fit measures for synthetic microdata." Geographical and Environmental Modelling 5(2): 177-200.

Voas, D. and P. Williamson (2001). "Response (The diversity of diversity)." AREA 33(3): 335-336.