@misc{Breitkopf_Franciszek_(1828-1904)_„Philosophia”.,
 author={Breitkopf, Franciszek (1828-1904)},
 howpublished={online},
 language={lat},
 language={ger},
 title={„Philosophia”. T. 1, „Liber primus. Philosophia. Romae 6 Novembris 1856”},
 type={rękopis},
}