Fluorescence study of the interaction between metal ions and methyl methacrylate-methacrylic acid copolymers in aqueous solutions: thallium(I), calcium(II), and terbium(III) - Tiera, Marcio José; Oliveira, Vera Aparecida de; Burrows, H D; Miguel, Maria da Graça; Neumann, Miguel Guillermo (Colloid and Polymer Science, 1998)