1. Vermesan, O., Friess, P.: Internet of Things: Converging Technologies for Smart Environments and Integrated Ecosystems, Aalborg. River publishers series in communications (2013) ISBN: 978-87-92982-73-5
2. van der Zee, E., Scholten, H.: Application of geographical concepts and spatial technology to the Internet of Things. Vrije University, Faculty of Economics and Business Administration, Amsterdam, Research Memorandum 33 (2013)
3. D2.2 Requirements, Specifications and Localization and Context-acquisition for IoT Context-Aware Networks. uBiquitous, secUre inTernet-of-things with Location and contExt-awaReness (BUTLER), Jacobs University Bremen gGmbH (JUB), Project number 287901 (October 2012)
4. Balandin, S., Waris, H.: Key properties in the development of smart spaces. In: Stephanidis, C. (ed.) Universal Access in HCI 2009, Part II. LNCS, vol. 5615, pp. 3–12. Springer, Heidelberg (2009)
5. Perera, C., Zaslavsky, A., Christen, P., Georgakopoulos, D.: Context Aware Computing for The Internet of Things: A Survey. IEEE Communications Surveys and Tutorials PP(99), 1–44 (2013)