@misc{Welin_Der,
 author={Welin},
 address={Oldenburg in Holstein},
 howpublished={online},
 publisher={Kunstverlagsanstalt Julius Simonsen},
 language={ger},
 title={Der Hochstein (Iserkamm)},
 keywords={grafika niemiecka, akwaforta, Sudety, widoki, Góry Izerskie},
}