LÁZARO-RODRÍ­GUEZ, Pedro. Impact of Covid-19 on the use of Spanish university libraries during 2020: a web tool for analysis. Anuario ThinkEPI, [S. l.], v. 16, 2022. DOI: 10.3145/thinkepi.2022.e16a05. Disponível em: https://thinkepi.scimagoepi.com/index.php/ThinkEPI/article/view/91521. Acesso em: 7 may. 2026.