Institution: | A1 Database Research Laboratory, Applied Computing Research Institute, La Trobe University, Bundoora, Victoria, Australia Tel: +61 3 94791003 Fax: +61 3 94793060 email: johnz@latcs1.cs.latrobe.edu.au A2 School of Information Technology and Mathematical Sciences, University of Ballarat, PO Box 663, Ballarat, Victoria, Australia Tel: +61 3 53279440 Fax: +61 353279289 email: a.stranieri@ballarat.edu.au |