Alex Berke, Kent Larson, Chapter 3 - Mobile phones and their use to study dynamics of the COVID-19 pandemic, Editor(s): Rajkumar Rajendram, Victor R. Preedy, Vinood B. Patel, Features, Transmission, Detection, and Case Studies in COVID-19, Academic Press, 2024, Pages 25-37, ISBN 9780323956468, https://doi.org/10.1016/B978-0-323-95646-8.00049-4