Luminescent properties of europium-EDTA complexes with 2-acyl-1,3-indandionate ligands - Teotonio, Ercules Epaminondas de Sousa; Santos, Paulo Roberto da Silva; Jesus, Ashley Anderson Santos Santana de; Silva, Iran Ferreira da; Faustino, Wagner de Mendonça; Brito, Hermi Felinto de; Felinto, Maria Claudia França da Cunha; Costa, Israel Ferreira da (Brazilian Materials Research Society/B-MRS, 2025)