@misc{Schröder_Hans_(1887-_)_Riga,
 author={Schröder, Hans (1887- )},
 address={Riga},
 address={Tilsit},
 howpublished={online},
 publisher={Holzner Verlag},
 publisher={Lettlands Wertpapierdruckerei},
 language={ger},
 type={książka},
 title={Riga im Wandel der Zeiten},
}