@book{Landauer, author = {Landauer, Gustav}, title = {Aufruf zum Sozialismus, Berlin (Paul Cassirer) 1919.}, language = {de} } @book{Landauer, author = {Landauer, Gustav}, title = {Briefe aus der franz{\"o}sischen Revolution, Frankfurt a. M. (Literarische Anstalt R{\"u}tten \& Loening) 1919.}, language = {de} } @book{Marx, author = {Marx, Karl}, title = {Capital. Volume I, Chicago (Charles H. Kerr \& Company) 1919.}, language = {en} } @book{Marx, author = {Marx, Karl}, title = {Capital. Volume II, Chicago (Charles H. Kerr \& Company) 1919.}, language = {en} } @book{Hegel, author = {Hegel, Georg Wilhelm Friedrich}, title = {Die orientalische Welt, Leipzig (Verlag von Felix Meiner) 1919.}, language = {de} } @book{Kant, author = {Kant, Immanuel}, title = {Kritik der reinen Vernunft, Leipzig (Verlag von felix Meiner) 1919.}, language = {de} } @book{Reik, author = {Reik, Theodor}, title = {Probleme der Religionspsychologie, Leipzig and Wien (Internationaler Psychoanalytischer Verlag).}, language = {de} }