@misc{Melanchthon_Philipp_(1497-1560)_Doctrinae,
 author={Melanchthon, Philipp (1497-1560)},
 howpublished={online},
 publisher={Vincent, Antoine (1500?-1568). Druk.},
 language={lat},
 type={stary druk},
 title={Doctrinae Physicae Elementa, Sive Initia},
}