Electrochromic NiO$_x$ Film by DC Sputtering Xu Yanzhong, Qiu Muqing, Qiu Sichou, Dai Jing, Hunag Hanrou et Cao Guangjun J. Phys. III France, 5 10 (1995) 1491-1499 DOI: 10.1051/jp3:1995206
