@misc{Grottger_Artur_(1837-1867)_Na_[ca,
 author={Grottger, Artur (1837-1867)},
 address={Kraków},
 howpublished={online},
 year={[ca 1927]},
 publisher={Salon Malarzy Polskich},
 language={pol},
 language={fre},
 title={Na Placu Zygmunta},
 type={pocztówka},
 keywords={Karty pocztowe, Karty pocztowe -- Polska -- 1900-1945},
}