@misc{Eckstein_Adolf_[Muck,,
 author={Eckstein, Adolf},
 address={Berlin-Charlottenburg},
 howpublished={online},
 publisher={Adolf Ekcstein's Verlag, Berlin- Charlottenburg.},
 language={ger},
 title={[Muck, Karl]},
 keywords={19thC., 20thC., German graphics, Photogravure, portrait, man, clothing, musicans, German, Muck, Karl (1859-1940), Boston (USA), Hamburg, Eckstein, Adolf, Adolf Eckstein's Verlag, Berlin-Charlottenburg, Portr.-Slg.VI M 6, R 309/35},
}