Schmitz, H. The land surveyor: Hanns-Josef Ortheil's search for his poetic home / Helmut Schmitz. Contemporary German writers, their aesthetics and their language.(1996).
Lua i Stíl Chicago (17ú heag.)Schmitz, Helmut. "The Land Surveyor: Hanns-Josef Ortheil's Search for His Poetic Home / Helmut Schmitz." Contemporary German Writers, Their Aesthetics and Their Language.(1996) .
Lua MLA (8ú heag.)Schmitz, Helmut. "The Land Surveyor: Hanns-Josef Ortheil's Search for His Poetic Home / Helmut Schmitz." Contemporary German Writers, Their Aesthetics and Their Language.(1996), .
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.