J. Mark Ware Christopher B. Jones Nathan Thomas Automated map generalization with multiple operators: a simulated annealing approach. 743-769 2003 17 International Journal of Geographical Information Science 8 http://taylorandfrancis.metapress.com/openurl.asp?genre=article&issn=1365-8816&volume=17&issue=8&spage=743 db/journals/gis/gis17.html#WareJT03