@misc{Sommer_Ernst_Der,
 author={Sommer, Ernst},
 address={Breslau},
 howpublished={online},
 publisher={M. & H. Marcus},
 language={ger},
 title={Der Hirschberger Kessel. Eine landeskundliche Studie},
 type={tekst},
 keywords={"Leopoldina online"},
}