"Separatabdruck aus dem Archiv für geschichte der philosophie, I. bd., 2. hft., 1888."Microfilm.Mode of access: Internet.Filmed;No. 16 on a reel of 30 titles.Master negative: 93-81317-16
Microfilm.Mode of access: Internet.Filmed;No. 2 on a reel of 22 titles.Master negative: 93-81607-2
Microfilm.Mode of access: Internet.Filmed;No. 1 on a reel of 5 titles.Master negative: 91-80426-1
Microfilm.Mode of access: Internet.Filmed;No. 9 on a reel of 9 titles.Master negative: 93-81667-9
Microfilm.Mode of access: Internet.Filmed;No. 8 on a reel of 17 titles.Master negative: 93-81197-8
Microfilm.Mode of access: Internet.Filmed;No. 5 on a reel of 17 titles.Master negative: 93-81657-5
Thesis-Freiburg.Microfilm.Mode of access: Internet.Filmed;No. 10 on a reel of 17 titles.Master negat...
Microfilm.Mode of access: Internet.Filmed;No. 3 on a reel of 9 titles.Master negative: 93-81199-3
Microfilm.Mode of access: Internet.Filmed;No. 2 on a reel of 6 titles.Master negative: 91-80427-2
Microfilm.Mode of access: Internet.Filmed;No. 1 on a reel of 2 titles.Master negative: 91-80166-1
Microfilm.Mode of access: Internet.Filmed;No. 2 on a reel of 6 titles.Master negative: 91-80289-2
"Beilage zum Osterprogramme des Königlichen Gymnasiums zu Emmerich, 1885."Microfilm.Mode of access:...
Microfilm.Mode of access: Internet.Filmed;No. 1 on a reel of 8 titles.Master negative: 91-80145-1
"Aus der Altpreussischen monatsschrift... bd. XVIII, hft. 3 u. 4, s. 293-309 besonders abgedruckt."M...
Inaug.-Diss.--Leipzig.Microfilm.Mode of access: Internet.Filmed;No. 13 on a reel of 16 titles.Master...
Inaug.-Diss.--Jena.Microfilm.Mode of access: Internet.Filmed;No. 10 on a reel of 25 titles.Master ne...
Microfilm.Mode of access: Internet.Filmed;No. 2 on a reel of 22 titles.Master negative: 93-81607-2
Microfilm.Mode of access: Internet.Filmed;No. 1 on a reel of 5 titles.Master negative: 91-80426-1
Microfilm.Mode of access: Internet.Filmed;No. 9 on a reel of 9 titles.Master negative: 93-81667-9
Microfilm.Mode of access: Internet.Filmed;No. 8 on a reel of 17 titles.Master negative: 93-81197-8
Microfilm.Mode of access: Internet.Filmed;No. 5 on a reel of 17 titles.Master negative: 93-81657-5
Thesis-Freiburg.Microfilm.Mode of access: Internet.Filmed;No. 10 on a reel of 17 titles.Master negat...
Microfilm.Mode of access: Internet.Filmed;No. 3 on a reel of 9 titles.Master negative: 93-81199-3
Microfilm.Mode of access: Internet.Filmed;No. 2 on a reel of 6 titles.Master negative: 91-80427-2
Microfilm.Mode of access: Internet.Filmed;No. 1 on a reel of 2 titles.Master negative: 91-80166-1
Microfilm.Mode of access: Internet.Filmed;No. 2 on a reel of 6 titles.Master negative: 91-80289-2
"Beilage zum Osterprogramme des Königlichen Gymnasiums zu Emmerich, 1885."Microfilm.Mode of access:...
Microfilm.Mode of access: Internet.Filmed;No. 1 on a reel of 8 titles.Master negative: 91-80145-1
"Aus der Altpreussischen monatsschrift... bd. XVIII, hft. 3 u. 4, s. 293-309 besonders abgedruckt."M...
Inaug.-Diss.--Leipzig.Microfilm.Mode of access: Internet.Filmed;No. 13 on a reel of 16 titles.Master...
Inaug.-Diss.--Jena.Microfilm.Mode of access: Internet.Filmed;No. 10 on a reel of 25 titles.Master ne...
Microfilm.Mode of access: Internet.Filmed;No. 2 on a reel of 22 titles.Master negative: 93-81607-2
Microfilm.Mode of access: Internet.Filmed;No. 1 on a reel of 5 titles.Master negative: 91-80426-1
Microfilm.Mode of access: Internet.Filmed;No. 9 on a reel of 9 titles.Master negative: 93-81667-9