@misc{Keutgen_Friedrich_(1861–1936)_Der_1918, author={Keutgen, Friedrich (1861–1936)}, copyright={Public Domain}, address={Jena}, howpublished={online}, year={1918}, publisher={G. Fischer}, language={ger}, title={Der deutsche Staat des Mittelalters}, URL={http://www.rcin.org.pl/iae/Content/17362/PDF/WA308_12118_II15617_DEUTSCHE-STAAT_I.pdf}, keywords={Middle Ages -- Germany, history of Germany, history of medieval law, medieval state law, statehood -- concept, state -- organization, state -- political system, power and authority in the Middle Ages, power and authority structures in the Middle Ages, medieval territorial power and authority, socio-political history of Germany}, }