@misc{Krüger_Piotr_(1580-1639)_Synopsis,
 author={Krüger, Piotr (1580-1639)},
 howpublished={online},
 publisher={Drukarnia Andrzeja Hünefelda},
 language={lat},
 language={pol},
 type={starodruk},
 title={Synopsis Trigonometriæ Sive Doctrinæ Triangulorum, Cum Canone Trigonometrico hoc est Tabulis Sinuum, Tangentium, Secantium, emendatissimis : Nunc primum hac forma portatili edita},
}