F. Kayali, O. Hodl, C. Bartmann, U. Kuhn, T. Wagensommerer, and R. Mateus-Berr, “Learnings from an Iterative Design Process for Technology-Mediated Audience Participation (TMAP) using Smartphones”, EAI Endorsed Trans Creat Tech, vol. 5, no. 14, p. e5, Jan. 2018, doi: 10.4108/eai.16-1-2018.153643.