1. Carbonnel, J.R.: AI in CAI: An Artificial-Intelligence Approach to Computer-Assisted Instruction. IEEE Transactions on Man Machine Systems 11(4), 190–202 (1970)
2. Self, J.A.: Student models in computer-aided instruction. International Journal of Man-Machine Studies 6(2), 261–276 (1974)
3. Self, J.A.; Bypassing the intractable problem of student modelling. In: Frasson, C., Gauthier, G. (eds.) Intelligent Tutoring Systems: at the Crossroads of Artificial Intelligence and Education, pp. 107–123. Ablex, Norwood (1990)
4. Sefton-Green, J.: Literature Review in Informal Learning with Technology Outside School. NESTA FUTURELAB, report 7.
https://www.nfer.ac.uk/publications/FUTL72
. Accessed 2017/04/15
5. Lemoisson, P., Surroca, G., Jonquet, C., Cerri, S.A.: ViewpointS: when social ranking meets the semantic web. In: Rus, V., Markov, Z. (eds) FLAIRS 2017 The 30th International FLAIRS Conference. AAAI Press, Marco Island (2017)