Calon, L.F.
Batavia: Albrecht, 1895
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Admoni, Wladimir
Munchen Beck 1982
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Erben, Johannes, author
Munchen Max Hueber 1980
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Paul, Hermann, 1846-1921, author
Tubingen Max Niemeyer 1951
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Schmidt, K.
Wien Holder 1920
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