@misc{Parkosz_Jakub_Jacobi,
 author={Parkosz, Jakub},
 howpublished={online},
 publisher={Raczyński E.},
 title={Jacobi Parkossii de Żorawice antiquissimus de orthographia polonica libellus rogatu et sumptibus Eduardi Raczyński opera et studio Georgii Samuelis Ba},
}