@misc{_[Jan_[ca,
 editor={Sztolcman, Jan (1854–1928). Kolekcjoner},
 copyright={Public Domain},
 howpublished={online},
 year={[ca 1890-1930]},
 language={pol},
 type={Text},
 title={[Jan Sztolcman. Korespondencja. Bilety wizytowe]},
 URL={http://rcin.org.pl/miiz/Content/31033/PDF/WA058_AJSz-2-219_koresp_bilety.pdf},
 keywords={Sztolcman, Jan (1854-1928), friends and associates, haritage, correspondence 19th, letter writing, Polish},
}