Mário J. SilvaBruno MartinsMarcirio ChavesNuno CardosoAna Paula Afonso2010-05-212014-11-142010-05-212014-11-1420042004http://hdl.handle.net/10451/14367http://repositorio.ul.pt/handle/10455/5994engComputer ScienceAdding Geographic Scopes to Web Resourcesjournal article