Sangurima-Coyago, A., Medina-Zambrano, M., Guerrero, M.-L. and Orellana-Vintimilla, D. 2020. Validation of the use of smartphones for measuring environmental urban noise. Maskana. 11, 2 (Dec. 2020), 81–87. DOI:https://doi.org/10.18537/mskn.11.02.08.