SYNTHETIC METALS, vol. 128, no. 2, page. 133 - 137, 2002-04-30
SYNTHETIC METALS, vol. 117, no. 1-3, page. 249 - 251, 2001-02-15
SYNTHETIC METALS, vol. 121, no. 1-3, page. 1753 - 1754, 2001-03-15
SYNTHETIC METALS, vol. 122, no. 2, page. 437 - 441, 2001-06-01