Hille, H. (1982). Philatelie. Transpress.
Lua i Stíl Chicago (17ú heag.)Hille, Horst. Philatelie. Berlin: Transpress, 1982.
Lua MLA (8ú heag.)Hille, Horst. Philatelie. Transpress, 1982.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.