Juliana Küster Filipe Bowles Iman Poernomo Ralf Reussner Preface. 1-4 2007 176 Electr. Notes Theor. Comput. Sci. 2 http://dx.doi.org/10.1016/j.entcs.2006.11.020 db/journals/entcs/entcs176.html#BowlesPR07