Gretchen Schubert

Gretchen Schubert – 1926-yilda rejissyor Karl Moos tomonidan suratga olingan Germaniya ovozsiz filmiThe Sounds of Silent Films p.76.

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 Claus Tieber & Anna Katharina Windisch. The Sounds of Silent Films: New Perspectives on History, Theory and Practice. Palgrave Macmillan, 2014.

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