De Ivre Natvrali Vetervm / Commentatio Qvam Avctoritate Amplissimi Philosophorvm Ordinis Pro Asseqvendis Svmmis In Philosophia Honoribvs Die XVII. Mart. MDCCXCVIII Pvblice Defendet Avctor Fridericvs Ballhorn Sem. Phil. Gott. Sod. Hannoveranvs. Gottingae : Barmeier, 1798