| title | media type | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|---|
| Digital Media Usage Across the Life Course | Paperback | 978-1-138-49437-4 (1-138-49437-2) | 2018 | Andreas Funk |
| Understanding E-Government in Europe: Issues and Challenges | Hardcover | 978-0-415-46799-5 (0-415-46799-3) | 2010 | Paul G. Nixon · Vassiliki N. Koutrakou |
| Understanding E-Government in Europe: Issues and Challenges | Paperback | 978-0-415-46800-8 (0-415-46800-0) | 2009 | Paul G. Nixon · Vassiliki N. Koutrakou |