Pinos, V., Alvarez-Blacio , A., Alvitres-Medina, C., Castro , C., Verdugo, J., Pérez-González, A., Tonon, M.D. and Tripaldi, P. 2022. Characterization of the content of anions and metals of potatoes, tomatoes and onions marketed in Cuenca, Ecuador to obtain a classification model. Enfoque UTE. 13, 4 (Oct. 2022). DOI:https://doi.org/10.29019/enfoqueute.866.