1. Towards a better understanding of context and context-awareness;Abowd;Lect. Notes Comput. Sci.,1999
2. Ailisto, H., Alahuhta, P., Haataja, V., Kyllönen, V., Lindholm, M., 2002. Structuring context aware applications: five-layer model and example case. In: Proceedings of the Workshop on Concepts and Models for Ubiquitous Computing. pp. 1–5.
3. The internet of things: a survey;Atzori;Comput. Netw.,2010
4. A survey on context-aware systems;Baldauf;Int. J. Ad Hoc Ubiquitous Comput.,2007
5. Steps, techniques, and technologies for the development of intelligent applications based on Semantic Web Services: a case study in e-learning systems;Barros;Eng. Appl. Artif. Intell.,2011