Não informado. (1994). Journal of Optical Technology. Optical Society of America.
Lua i Stíl Chicago (17ú heag.)Não informado. Journal of Optical Technology. Washington: Optical Society of America, 1994.
Lua MLA (8ú heag.)Não informado. Journal of Optical Technology. Optical Society of America, 1994.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.