Study of the interactions of substituted 1,10-phenantrolines with Eu(3+) and Gd (3+) ions: effects on the lanthanide luminescence and on the ligand phosphorescence - Figueira, A. C. B.; Sousa Filho, P. C. de; Polo, A. S.; Oliveira, K. T. de; Serra, Osvaldo Antonio (Encrontro Nacional sobre Terras Raras, 2010)