@misc{Eck_Valentin_(1494?-1556)_Ad,
 author={Eck, Valentin (1494?-1556)},
 howpublished={online},
 publisher={Hieronim Wietor},
 language={lat},
 title={Ad Inclytvm Hvngariae et Bohemiæ Regem etc. Archiducem Austriæ etc. Dominum Ferdinandvm, Epistola : nomine partium superiorum Hungariæ},
 type={starodruk},
}