1. Arlitt, M., Marwah, M., Bellala, G., Shah, A., Healey, J., Vandiver, B.: MQTT version 3.1.1 plus errata 01. Standard, OASIS, 10 December 2015
2. Bacca, J., Baldiris, S., Fabregat, R., Graf, S., Kinshuk: Augmented reality trends in education: a systematic review of research and applications. J. Educ. Technol. Soc. 17(4), 133–149 (2014)
3. Besl, P.J., McKay, N.D.: A method for registration of 3-D shapes. IEEE Trans. Pattern Anal. Mach. Intell. 14(2), 239–256 (1992)
4. Billinghurst, M., Kato, H.: Collaborative mixed reality. In: Proceedings of the First International Symposium on Mixed Reality (ISMR 1999), pp. 261–284. Springer, Berlin (1999)
5. Bimber, O., Raskar, R.: Spatial Augmented Reality: Merging Real and Virtual Worlds. A K Peters, Wellesley (2005)