Matt Duckham Jane Drummond Assessment of error in digital vector data using fractal geometry. 67-84 2000 14 International Journal of Geographical Information Science 1 http://taylorandfrancis.metapress.com/openurl.asp?genre=article&issn=1365-8816&volume=14&issue=1&spage=67 db/journals/gis/gis14.html#DuckhamD00