| Autor(en) | Titel | Jahr |
|---|
| Berg, Rüdiger | 3. Briefsymposion über Fernstudien und Fernunterricht | 1979 |
| Feld, Friedrich | 3. Lehrbrief Wirtschaftspädagogik | |
| 4. Aufgabenbrief | 1932 |
| Stöber, Adolf Maria | 4. BRIEF-Symposion | 1984 |
| Göttel, Heinz G[ustav] | 4. BRIEF-Symposion in Tübingen | 1985 |
| Gutschow, Harald | 4. Studienbrief | 1969 |
| 5. Aufgabenbrief | 1932 |
| Gutschow, Harald | 5. Studienbrief | 1969 |
| 6. Aufgabenbrief | 1932 |
| Gutschow, Harald | 6. Studienbrief | 1969 |
| Gutschow, Harald | 7. Studienbrief | 1969 |
| Gutschow, Harald | 8. Studienbrief | 1969 |
| Scheller, Wolf | 80 Gutachter überprüfen Fernlehrbriefe | 1971 |
| Gutschow, Harald | 9. Studienbrief | 1970 |
| Hartley, James | A Brief Annotated Bibliography | 1975 |
| Chia, Noel | A brief examination on distance education as a mode of continuing education, training and development (CETD): a lifelong learning process for Singapo | 1998 |
| Lewis, K.G. | A brief history and overview of faculty development in the United States | 1997 |
| Durbridge, Nicola | A Brief Survey of Current Course Team Policies on Tutorial Provision | 1977 |
| A Brief Survey of the W.A. Correspondence School | 1962 |
| Weise, Gerhard | Abitur durch Briefwechsel | 1967 |
