Daniore, P., T. Ballouz, D. Menges, and V. von Wyl. “The SwissCovid Digital Proximity Tracing App After One Year: Were Expectations Fulfilled?  ”. Swiss Medical Weekly, vol. 151, no. 3536, Sept. 2021, p. w30031, doi:10.4414/SMW.2021.w30031.