1. Kuninaka H, Nishiyama K, Funaki I 2007 J. Propul. Power 23 544
2. Nishiyama K, Funaki I, Kuninaka H 2007 J. Propul. Power 23 513
3. Ren Z X, Shen K M, Lü Q A 2002 Plasma Sci. Technol. 4 1545
4. Lü Q A, Ren Z X, Liang R Q, Cheng S Y 2001 Vac. Sci. Technol. 21 226 (in Chinese) [吕庆敖、任兆杏、梁荣庆、程绍玉 2001 真空科学与技术 21 226]
5. Zhao H W, Liu Z W, Zhang W, Zhang X Z, Yuan P, Guo X H, Zhang Z M, Wang Y F 2000 At. Ener. Sci. Techn. 34 282 (in Chinese) [赵红卫、刘占稳、张 汶、张雪珍、袁 平、郭晓虹、张子民、王义芳 2000 原子能科学与技术 34 282]