Characterization of the Photochromic and Electrochromic Titania Gel
Guan Zi-Sheng, Ma Ying, Cao Ya-An, Ji Xue-Hai, Yao Jian-Nian
Acta Phys. -Chim. Sin. . 2000, (01): 5 -8 .  DOI: 10.3866/PKU.WHXB20000102