Delgado, Alexi, Andrade, Abraham, Prado, José, Chacaliaza, Alvaro, Duran, Lenny, Lee-Huamani, Enrique. Applying the Grey Systems Theory to Assess Air Quality in La Oroya - Peru. LACCEI [Internet]. 2023 July 27 [cited 2026 June 17];1(8). Available from: https://proceedings.laccei.org/index.php/laccei/article/view/2753