Zeller, Gregor; Gschwentner, August; Jung, August: Quaestio pedissequa prodromi philosophiae Mettensis. Straubingae: Betz, 1734 [PDF, 6MB]
Zeller, Gregor; Jung, August: Prodromus philosophiae Mettensis. Straubingae: Betz, 1733 [PDF, 4MB]