Lansbergen, Philips van: Philippi Lansbergi[i] Triangvlorvm Geometriæ Libri Qvatvor : In quibus nouâ & perspicuâ methodo, & apodeixei tota ipsorum Triangulorum doctr…, Leiden, 1591
Philippi Lansbergi[i] Triangvlorvm Geometriæ Libri Qvatvor : In quibus nouâ & perspicuâ methodo, & apodeixei tota ipsorum Triangulorum doctrina explicatur ; Ad Senatum Populumq[ue] Middelburgensem