6Caspar David Friedrich. Die Nachtseite der Malerei[M]. Munchen: Matthes & Seitz, 1993.
7Klepper/Petzold. Die Nacht is vorgedrungen [A].Evangelisches Gesangbuch [C]. Gfitersloh:Gutersloher Verlagshaus, 1996.
8Liu T'ieh-yun. The Travels of Lao Ts'an [M].Ithaca and London: Cornell University Press, 1952.
9Wolfgang Kubin. Lu Xun's Dreams on the Eve of the May Fourth and Thereafter [A]. In Interliterary and Intraliterary Aspects of the May Fourth Movement 1919 in China, Marian Galik [C].Bratislava.. Publishing House of the Slovak Academy of Sciences, 1990.
10Lu Hsun. Selected Works Volume 1 [M]. Beijing:Foreign Language Press, 1956.
