The Changes of the National Structure of Kladno, Most and Ostrava Regions between "the Long" and "the Short" Centuries (1910-1921). (Influence of Proletarization and the Social Migration on the Ethnical Composition of Selected Industry Aglomerations - the most Intense Ethnic Change Regions of Czech Countries).
Die Tschechoslowakei als parlamentarische Demokratie in der national- und sozialpolitischen Krise Mitteleuropas 1920. (Wurzeln, Folgen, Zusammenhänge).