- "Poznan Grand Duchy"). See also Brockhaus Enzyklopädie Brockhaus Granat Encyclopedic Dictionary References External links digitized copy (Full edition in Russian) – DjVu format at Runivers.ru 1890 non-fiction books Russian-language encyclopedias Russian encyclopedias 19th-century encyclopedias 20th-century encyclopedias 21st-century encyclopedias