ORGANIC ELECTRONICS, vol. 12, no. 2, page. 269 - 278, 2011-02
OPTICS EXPRESS, vol. 15, no. 26, page. 18130 - 18140, 2007-12-24
JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A-VACUUM SURFACES AND FILMS, vol. 19, no. 4, page. 1617 - 1622, 2001-07