Köhler, H. Symbolist theater: Hartmut Köhler. The symbolist movement in the literature of European languages.(1982).
Lua i Stíl Chicago (17ú heag.)Köhler, Hartmut. "Symbolist Theater: Hartmut Köhler." The Symbolist Movement in the Literature of European Languages.(1982) .
Lua MLA (8ú heag.)Köhler, Hartmut. "Symbolist Theater: Hartmut Köhler." The Symbolist Movement in the Literature of European Languages.(1982), .
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.