@misc{[Zahrtmann_Christian_Christopher_(1793-1853)]_Astronomische, author={[Zahrtmann, Christian Christopher (1793-1853)] and Encke, Johann Franz (1791-1865) and Cauchoix, Robert-Aglaé (1776-1845)}, howpublished={online}, language={ger}, language={fre}, title={Astronomische Nachrichten No. 305. (Drucktitel)}, type={rękopis}, keywords={rękopisy}, }