@Misc{BVMC:688145, author = {Peurbach, Georg von}, title = {Theoricae nouae Planetarum id est septem erratium syderum : necnon octaui orbis seu firmamenti}, url = {https://www.cervantesvirtual.com/obra/theoricae-nouae-planetarum-id-est-septem-erratium-syderum--necnon-octaui-orbis-seu-firmamenti} }