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Schulflora für die sterreichischen Südeten- und Alpenländer (mit Ausschluss des Küstenlandes) - Fritsch, Karl, 1864 -1934 (C. Gerold, 1900)

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Seed annual, 1930 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Stumpp & Walter Co, 1930)

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