Huch, R Huch, Ricarda
Leipzig Haessel 1918
Buku Teks
Novalis [and others]
Vollmer Verlag, 1949
Buku Teks
Wilpert, Gero von
Alfred Kroner , 1964
Buku Referensi
Jakobson, Roman
Berlin Akademic-Verlag 1960
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Heller, EK
Berkeley [etc.] University of California Press 1952
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