@misc{Purkinje_Joannes_Evangelista_(1787-1869)_Commentatio,
 author={Purkinje, Joannes Evangelista (1787-1869)},
 howpublished={online},
 publisher={'s-Gravenhage : Dr. W. Junk},
 language={lat},
 title={Commentatio de examine physiologico organi visus},
}