@misc{Jan_II_Jakub_Heraklid_Despot_(1511–1563)_De,
 author={Jan II Jakub Heraklid, Despot (1511–1563)},
 howpublished={online},
 language={lat},
 type={rękopis},
 title={De arte militari},
 keywords={wojskowość 16w., poradniki 16w.},
}