@misc{Rosenhagen_Hans_(1858-?)_Wilhelm,
 author={Rosenhagen, Hans (1858-?)},
 address={Bielefeld},
 address={Leipzig},
 howpublished={online},
 publisher={Velhagen & Klasing},
 language={ger},
 type={książka},
 title={Wilhelm Trübner},
 title={W. Trübner},
}