Author:Karl Otto Robert Peter Paul Graebner
Works
[edit]- Handbuch der heidekultur, (with von Otto von Bentheim), 1871.
- Synopsis der mitteleuropäischen Flora, (with Paul Friedrich August Ascherson), 1894.
- Flora des nordostdeutschen Flachlandes, (with Paul Friedrich August Ascherson), 1899.
- Heide und moor, 1909.
Some or all works by this author are in the public domain in the United States because they were published before January 1, 1929.
This author died in 1933, so works by this author are in the public domain in countries and areas where the copyright term is the author's life plus 90 years or less. These works may be in the public domain in countries and areas with longer native copyright terms that apply the rule of the shorter term to foreign works.
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