Sánchez-Teruel, David, and María Auxiliadora Robles-Bello. “The COVID-19 Fear Scale (FCV-19S): Psychometric Properties and Invariance of the Measure in the Spanish Version”. Actas Españolas De Psiquiatría, vol. 49, no. 3, May 2021, pp. 96-105, https://actaspsiquiatria.es/index.php/actas/article/view/320.