Apel, Max, 1869-1945, author
Walter de Gruyter & Co., 1950
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Schmidt, Heinrich, author
New York, Mary S. Rosenberg
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Mackenfen, Lutz, author
Laupheim Pfahl 1952
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Paul, Hermann, 1846-1921, author
Von Max Niemeyer, 1921
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Detter, Ferdinand, author
G. F. Gofchen'iche Berlagshandlung, 1897
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