@misc{Corsonich_Eugeniusz_Appendix,
 author={Corsonich, Eugeniusz},
 howpublished={online},
 publisher={[Michał Gröll]},
 language={lat},
 type={starodruk},
 title={Appendix Jn qua veritas perfectæ Circuli Quadraturæ inventæ novis Demonstrantionibus confirmatur, & Jllustratur},
}