| title | ISBN-13 | year of publica- tion | other author(s) |
|---|---|---|---|
| Blackboard Standard Access Card | 978-0-13-047187-1 | 2002 | W. Christian · Gregor Novak |
| College Physics: Coursecompass Standard Access Card | 978-0-13-047189-5 | 2002 | W. Christian · Gregor Novak |
| Just-In-Time Teaching: Blending Active Learning with Web Technology | 978-0-13-085034-8 | 1999 | Gregor Novak · Wolfgang Christian · Evelyn Patterson |
| OneKey Student Access Kit: OneKey Student Access Kit | 978-0-13-035266-8 | 2004 | W. Christian · Gregor Novak · Doug Giancoli |
| Webct Standard Access Code Card | 978-0-13-047185-7 | 2002 | W. Christian · Gregor Novak |