José Braz Nuno Jardim Nunes João Madeiras Pereira GRAPP 2008, Proceedings of the Third International Conference on Computer Graphics Theory and Applications, Funchal, Madeira, Portugal, January 22-25, 2008 978-989-8111-20-3 GRAPP INSTICC - Institute for Systems and Technologies of Information, Control and Communication 2008 db/conf/grapp/grapp2008.html