| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Persuasive Recommender Systems: Conceptual Background and Implications | 978-1-4614-4702-3 (1-4614-4702-X) | 2014 | Ulrike Gretzel · Associate Professor Markus Zanker |
| Persuasive Recommender Systems: Conceptual Background and Implications | 978-1-4614-4701-6 (1-4614-4701-1) | 2012 | |