 1926-1930 Director of the International Agrarian Institute, from March 1928 to 1930 secretary general of the Peasant International (Krestintern), 1929-1935 editor of the Publishers of the Association of Former Political Excuers and Deportee , 1929- 1935 editor of the magazine "Katorga i ssyłka".
<clarity>  1926-1930 Director of the International Agrarian Institute, from March 1928 to 1930 secretary general of the Peasant International (Krestintern), 1929-1935 editor of the Publishers of the Association of Former Political Excuers and Deportee , 1929- 1935 editor of the magazine "Katorga i ssyłka".
 1926-1930 Director of the International Agrarian Institute, from March 1928 to 1930 secretary general of the Peasant International (Krestintern), 1929-1935 editor of the Publishers of the Association of Former Political Prisoners and Exiled Settlers , 1929- 1935 editor of the magazine "Katorga i ssyłka".