2023. Structural and morphological characterization of (LaF3)0.75Er0.025Yb0.225 and (LaF3)0.75Er0.015Yb0.235 nanoparticles prepared by chemical coprecipitation for the study of their anti-Stokes luminescent properties. Revista de Investigación de Física. 26, 3 (Dec. 2023), 33–40. DOI:https://doi.org/10.15381/rif.v26i3.26391.