@book{UBHD-1070054, author={Sanders, Ivor J.}, title={Feudal military service in England}, subtitle={a study of the constitutional and military powers of the barones in medieval England}, publisher={Oxford Univ. Press}, address={London}, year={1956}, pages={XV, 173 S.}, language={eng}, library={UB [Signatur: 62 A 423] ; GE [Signatur: Ei 876]}, }