Diem natalem ... imperatoris ac regis Guilelmi ab Academia Marburgensi die XXII m. martii anni MDCCCLXXXVII oratione in exedra pristini hippodromi habenda celebrandum indicit Theodorus Birt ... - Birt, Theodor, 1852-1933 (Typis academicis Roberti friedrich, 1897)