Julian Kardos George L. Benwell Antoni B. Moore The Visualisation of Uncertainty for Spatially Referenced Census Data Using Hierarchical Tessellations. 19-34 2005 9 T. GIS 1 http://dx.doi.org/10.1111/j.1467-9671.2005.00203.x db/journals/tgis/tgis9.html#KardosBM05