1. Abdul-Rahman, A., Hailes, S.: Supporting trust in virtual communities. In: 33rd Hawaii International Conference on System Sciences (2000)
2. Ahmad, M., Keegan, B., Williams, D., Srivastava, J., Contractor, N.: Trust amongst rogues? a hypergraph approach for comparing clandestine trust networks in mmogs. In: ICWSM (2011)
3. Artz, D., Gil, Y.: A survey of trust in computer science and the semantic web. Web Semant. 5, 58–71 (2007)
4. Baldi, P., Lopes, C.: The universal campus: An open virtual 3-D world infrastructure for research and education. eLearn 2012(4), 6 (2012)
5. Barosso, D., Bartle, R., Chazeran, C.: Security and privacy in massively-multiplayer online games and social and corporate virtual worlds. Technical report, ENISA (2008)