@misc{Calvisuis_Sethus_(1556-1615)_Sethi,
 author={Calvisuis, Sethus (1556-1615)},
 howpublished={online},
 publisher={Typis & impensis Iohannis Eichorn},
 language={lat},
 title={Sethi Calvisii Elenchus calendarii gregoriani : in quo errores, qvi passim in anni quantitate & epactis, quæ festa mobilia vitiosissime determinant, comittuntur, manifestè demonstrantur : & dvplex calendarii melioris & expeditioris formula proponitur editus opera Davidis Origani},
 type={starodruk},
}