1
Published: Berlin : Gea-Verl, ca. 1915
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2
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3
Published: Chur/Schweiz : Isis-Verlag, 1994
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4
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5
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6
Published: Leipzig : M. Ruhl, [1919]
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7
Published: Braunschweig [u.a.] : Westermann, [1928]
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8
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9
