Mehring- Gesammelte Schriften ( 4). Aufsätze zur Geschichte der Arbeiterbewegung 📘 book | German Primary author Mehring, Franz Publisher Dietz Place of Publication Berlin Date of Publication 1963
Rosa Luxemburg- Gesammelte Briefe 5: August 1914 - Januar 1919 📘 book | German Primary author Luxemburg, Rosa Publisher Dietz Place of Publication Berlin Date of Publication 1987