1. A.M. Lettington: InAmorphous Hydrogenated Carbon Films, ed. by P. Koidl, P. Oelhafen (Les editions de Physique, Les Ulis, France 1987) p. 359
2. H.-C. Tsai, D.B. Bogy: J. Vac. Sci. Technol. A5, 3287 (1987)
3. C. Weissmantel: In [ref. 1], p. 49
4. C. Wild, P. Koidl, J. Wagner: In [ref. 1], p. 137
5. N. Savvides: In [ref. 1] p, 275