Karpf-Kerkmann. Photo Technik International. Verlag Photo Technik International.
Lua i Stíl Chicago (17ú heag.)Karpf-Kerkmann. Photo Technik International. München: Verlag Photo Technik International.
Lua MLA (8ú heag.)Karpf-Kerkmann. Photo Technik International. Verlag Photo Technik International.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.