@misc{Langius_Joannes_De,
 author={Langius Joannes},
 howpublished={online},
 language={lat},
 title={De exercitiis discipulorum in scholis prophetarum ad ...},
 type={rękopis},
 keywords={Gimnazjum Elbląskie, Lange, Johann (1706-1781)},
}