@misc{Keyser_Erich_Danzigs, author={Keyser Erich}, howpublished={online}, publisher={Verlag A.W. Kafemann}, language={ger}, title={Danzigs Entwicklung}, type={książka}, keywords={Gdańsk - historia, Krajoznawcze Muzeum Historii Gdańska, Keyser, Erich (1893-1968)}, }