THIN SOLID FILMS, vol. 417, no. 1-2, page. 111 - 115, 2002-09-30
SYNTHETIC METALS, vol. 121, no. 1-3, page. 1743 - 1744, 2001-03-15
MOLECULAR CRYSTALS AND LIQUID CRYSTALS, vol. 370, page. 387 - 390, 2001-01