@misc{Descartes_René_(1596-1650)_Epistola,
 author={Descartes, René (1596-1650)},
 howpublished={online},
 title={Epistola Renati Des Cartes Ad celeberrimum Virum D. Gisbertvm Voetivm. [...]. [Renati Des-Cartes Opera philosophica: Principia Philosophiae},
 title={Specimina philosophiæ},
 title={Passiones animæ},
 title={Meditationes de prima philosophia},
 title={Appendix, continens objectiones quintas & septimas in Renati Des-Cartes Meditationes de prima philosophia},
 title={Epistola Renati Des Cartes ad celeberrimum virum D. Gisbertum Voetium].},
}