Feature selection for proximity estimation in COVID-19 contact tracing apps based on Bluetooth Low Energy (BLE). - Pablo G. Madoery; Ramiro Detke; Lucas Blanco; Sandro Comerci; Juan A. Fraire; Aldana M. González-Montoro; Juan Carlos Bellassai; Grisel Maribel Britos; Silvia María Ojeda; Jorge M. Finochietto (Pervasive Mob. Comput., 2021)