@misc{[Heyn_J._&_Söhne]_[A,
 author={[Heyn, J. & Söhne]},
 copyright={Rights Reserved - Restricted Access},
 howpublished={online},
 title={[A portrait of a priest] [An iconographic document]},
 keywords={ethnography, material culture, social culture, portrait, man, priest, Chojnice, pomorskie voivodeship (Poland)},
}