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Kammueller, Florian (2012) A security model for functional active objects. In: Communicability, computer graphics and innovative design for interactive systems. Francisco, Cipolla-Ficarra and Kim, Veltman and Miguel, Cipolla-Ficarra and Andreas, Kratky, eds. Lecture Notes in Computer Science (7545). Springer, Berlin, pp. 42-50. ISBN 9783642337598