1. Dey, A., Abowd, G.: Towards a better understanding of context and context-awareness. In: Gellersen H.-W. (ed.) HUC 1999, LNCS, vol. 1707, pp. 304–307. Springer, Heidelberg (1999).
https://doi.org/10.1007/3-540-48157-5_29
2. Longley, P., Goodchild, M., Maguire, D., Rhind, D.: Geographic Information Systems and Sciences, 3rd edn. Wiley, Hoboken (2011)
3. Shashi, S., Hui, X.: Encyclopedia of GIS. Springer, New York (2008)
4. Nielsen, J.: Law of Internet User Experience.
https://www.nngroup.com/videos/jakobs-law-internet-ux/
. Accessed 02 Dec 2018
5. Cybulski, J., Keller, S., Nguyen, L., Saundage, D.: Creative problem solving in digital space using visual analytics. Comput. Hum. Behav. 42, 20–35 (2015).
https://doi.org/10.1016/j.chb.2013.10.061