Izumi CMS, Brito HF, Ferreira A MDC, Constantino VRL, Temperini MLA.  2009.  Spectroscopic investigation of the interactions between emeraldine base polyaniline and Eu(III) ions. Synthetic Metals. 159(5-6):377-384.

Izumi CMS, Ferreira A MDC, Constantino VRL, Temperini MLA.  2007.  Studies on the Interaction of Emeraldine Base Polyaniline with Cu(II), Fe(III), and Zn(II) Ions in Solutions and Films. Macromolecules. 40(9):3204-3212.