GIBERGANS-BAGUENA, Jose; HERVADA-SALA, Carme; JARAUTA-BRAGULAT, Eusebi. The Quality of Urban Air in Barcelona: A New Approach Applying Compositional Data Analysis Methods. Emerging Science Journal, [S. l.], v. 4, n. 2, p. 113–121, 2020. DOI: 10.28991/esj-2020-01215. Disponível em: https://www.ijournalse.org/index.php/ESJ/article/view/291. Acesso em: 22 jun. 2025.