Villodre, Julián, and J. Ignacio Criado. “Collaboration Between Public Administrations and Citizens on Twitter During the Covid-19 Crisis in Spain”. Gestión y Análisis de Políticas Públicas, no. 26 (July 1, 2021): 81–91. Accessed August 25, 2024. https://revistasonline.inap.es/index.php/GAPP/article/view/10845.