@misc{_Black,
 howpublished={online},
 publisher={Stengel&Co m.b.H.},
 type={postcard},
 title={Black and white postcard "Baltic Sea resort of Sopot. Spa promenade and Stolzenfels"},
 title={Pocztówka czarno-biała „Ostseebad Zoppot. Kurpromenadeund Stolzenfels"},
 keywords={Postcard, Grafic desing, Museum collections, Sopot Museum},
}