@misc{_Photographic,
 howpublished={online},
 publisher={Knackstedt & Näther},
 type={postcard},
 title={Photographic postcard, Ostseebad Zoppot - Das Warmbad},
 title={Pocztówka fotograficzna, Ostseebad Zoppot – Das Warmbad},
 keywords={Postcard, Grafic desing, Museum collections, Sopot Museum},
}