| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Ppkg TD IBM 3"/Text, Using PFS: :1st Choic | 978-0-538-70607-0 (0-538-70607-4) | 1999 | William O. Drum · Martin J. Jansen |
| Ppkg TD IBM 5"/Txt-Using PFS: :1st Choice | 978-0-538-70606-3 (0-538-70606-6) | 1999 | William O. Drum · Martin J. Jansen |
J J · J. Jansen · M J · M. J. Jansen-Jacobs · M. Jansen · Martin J. Jansen