Engau, Johann Rudolph, and Johannes Justus Ravensberg. Programma VI. Inter Ea Quibus De Librorum, Quos Gräntz-Lager-Bücher, Fluhrläufer, Erb-Bücher, Und Hebe-Register Dicere Solemus, Forma, Continuatione, Renovatione, Fideque Varia Brevibus Disseritur, Ad Inauguralem Disputationem a ... Joanne Justo Ravensberg ... Defendendam Invitatorium. 1747. Print.