U. O'Reilly. IEEE International Conference on Systems, Man, and
Cybernetics, Computational Cybernetics and Simulation, 5, Seite 4092--4097. Orlando, Florida, USA, (12-15 October 1997)
M. Atallah, F. Kerschbaum, und W. Du. Proceedings of the 2003 ACM workshop on Privacy in the electronic
society, Seite 39--44. New York, NY, USA, ACM, (2003)
Y. Moon. CHI '98: Proceedings of the SIGCHI conference on Human factors in computing systems, Seite 103--108. New York, NY, USA, ACM Press/Addison-Wesley Publishing Co., (1998)
R. Fagin, R. Kumar, und D. Sivakumar. SODA '03: Proceedings of the fourteenth annual ACM-SIAM symposium on Discrete algorithms, Seite 28--36. Philadelphia, PA, USA, Society for Industrial and Applied Mathematics, (2003)
G. Tzagkarakis, B. Beferull-Lozano, und P. Tsakalides. Signals, Systems and Computers, 2004. Conference Record of the Thirty-Eighth
Asilomar Conference on, 1, Seite 397--401. IEEE Computer Society, (2004)