@misc{Potocki_Piotr_(_-1657)_Petri,
 author={Potocki, Piotr ( -1657)},
 howpublished={online},
 publisher={Balthasar Moretus},
 language={lat},
 type={starodruk},
 title={Petri Potocii Ad Invictissimvm Potentissimvmqve Principem Vladislavm Sigismvndvm Poloniae Et Sveciae Regem Oratio Gratvlatoria},
}