Boldt, H. (1986). Berlin. Berlin-Information.
Lua i Stíl Chicago (17ú heag.)Boldt, Hans-Joachim. Berlin. Berlin: Berlin-Information, 1986.
Lua MLA (8ú heag.)Boldt, Hans-Joachim. Berlin. Berlin-Information, 1986.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.