| Titel | Art | ISBN-13 (ISBN-10) | Erschei- nungsjahr | andere Autoren |
|---|---|---|---|---|
| Sustainable Development in Mountain Regions: Southeastern Europe | Gebunden | 978-3-319-20109-2 (3-319-20109-3) | 2016 | |
| Sustainable Development in Mountain Regions: Southeastern Europe | Hardcover | 978-94-007-0130-4 (94-007-0130-6) | 2011 | |
| Sustainable Mountain Regions: Challenges and Perspectives in Southeastern Europe | Gebunden | 978-3-319-27903-9 (3-319-27903-3) | 2016 | Boian Koulov |