The Brockhaus and Efron Encyclopedic Dictionary (Russian: Энциклопедический словарь Брокгауза и Ефрона) (35 volumes small; 86 volumes large) is in its scope and style the Russian counterpart to the Encyclopædia Britannica. It contains 121240 articles 7800 images and 235 maps. Published in Imperial Russia in 1890–1906 the comprehensive encyclopedia was a joint venture of Leipzig and St Petersburg publishers.
(c) Wikipedia.org

Dictionary works in offline mode. Database will install on SD-card or in internal memory (if card is not exist).