D. Io. Avgvsti Hellfeld ... Programma II. De Svccessione Ex Ivre Commvnionis ... Dissertationi Inavgvrali De Ivre Creditorvm Vasalli In Percipienda Ex Frvctibvs Fevdi Solvtione Praemissvm - Hellfeld, Johann August 1717-1782 (Schill, 1762)