G. BiegelG. BlairC. BrudnaV. CahillAntónio CasimiroS. ClarkeH. Duran-LimonA. FitzpatrickA. FridayB. HughesJ. KaiserR. MeierV. ReynoldsPaulo VeríssimoM. Wu2010-05-212014-11-142010-05-212014-11-1420032003http://hdl.handle.net/10451/14377http://repositorio.ul.pt/handle/10455/6003engComputer Sciencejournal article