De positu basis et retis triangulorum impensa Regis per totam Bojoariam porrectorum ad meridianum speculae astronomicae Regiae relato azimuthis observatis et ad calculos revocatis nunc primum definitoKarl Felix Seyffer · First published 1812Open the Tome
Expositio et dilvcidatio libri qvinti Elementorvm Evclidis ...Christoph Friedrich von Pfleiderer, Karl Felix Seyffer, Immanuel David Mauchart · First published 1782Open the Tome
