| title | ISBN-13 (ISBN-10) | year of publication | |
|---|---|---|---|
| Preferential Voting Systems: Influence on Intra-Party Competition and Voting Behaviour | 978-3-030-25285-4 (3-030-25285-X) | 2019 | |
| The Presidentialization of Political Parties: Organizations, Institutions and Leaders | 978-1-137-48245-7 (1-137-48245-1) | 2015 |