Solid-state NMR study of ion-exchange processes in 'V IND. 2''O IND. 5' xerogel, polyaniline/ 'V IND. 2''O IND. 5' and sulfonated polyaniline/ 'V IND. 2''O IND. 5' nanocomposites - Holland, Gregory P.; Yarger, J. L.; Buttry, Daniel A.; Huguenin, Fritz; Torresi, Roberto Manuel (Journal of the Electrochemical Society, 2003)