@book{UBHD-1446490, author={Popert, Hermann M.}, title={Helmut Harringa}, subtitle={eine Geschichte aus unserer Zeit}, edition={7. Aufl.}, publisher={K{\"o}hler}, address={Dresden}, year={1911}, pages={286 S.}, language={ger}, note={In Fraktur}, library={UB [Signatur: G 6885-25-100]}, }