Frank Stephan's addresses are: (1) Department of Mathematics, National University of Singapore 2 Science Drive 2, S14, Singapore 117543 Primary office is S14#04-13, Telephone +65-6516-2759 (2) School of Computing, National University of Singpore Law Link, COM1, Singapore 117590 Secondary office is COM1#02-16, Telephone +65-6516-4246 The telefax of the Department of Mathematics is +65-7795-5452 The email address is fstephan@comp.nus.edu.sg |