1. Bartlett, F.C.: Remembering : A Study in Experimental and Social Psychology. Cambridge University Press, Cambridge (1995). Originally published: London: Cambridge U.P. (1967)
2. Cena, F., Lombardi, I., Rapp, A., Sarzotti, F.: Self-monitoring of emotions: a novel personal informatics solution for an enhanced self-reporting. In: UMAP Workshops (2014)
3. Choe, E.K., Lee, N.B., Lee, B., Pratt, W., Kientz, J.A.: Understanding quantified-selfers’ practices in collecting and exploring personal data. In: Proceedings of the SIGCHI Conference on Human Factors in Computing Systems (CHI 2014), pp. 1143–1152. ACM, New York (2014)
4. Bundeszentrale fuer gesundheitliche Aufklaerung. Unsicher: Knaus-ogino-methode, koitus interruptus und stillen, February 2015.
http://www.familienplanung.de/verhuetung/verhuetungsmethoden/unsichere-methoden/
. Accessed 5 Feb 2015
5. Laird, S.: How smartphones are changing health care, September 2012.
http://mashable.com/2012/09/26/smartphones-health-care-infographic/
. Accessed 5 Feb 2015