Osorio Arjona, Joaquín. “Geolocated Social Networks and COVID 19: Analysis of the Temporal and Spatial Activity of Twitter Users in Spain During the Pandemic”. GeoFocus. International Review of Geographical Information Science and Technology, no. 30 (December 30, 2022): 25–47. Accessed January 31, 2023. https://geofocus.org/index.php/geofocus/article/view/789.