Joachim Biskup Julia Hielscher Sandra Wortmann A Trust- and Property-based Access Control Model. 169-177 2008 197 Electr. Notes Theor. Comput. Sci. 2 http://dx.doi.org/10.1016/j.entcs.2007.12.026 db/journals/entcs/entcs197.html#BiskupHW08