| The Muslim Minority in Greece Y Christidis Muslim communities in the new Europe, 153-160, 1997 | 11 | 1997 |
| Greek-Bulgarian relations: present state and future challenges Y Christidis, I Armakolas, P Paschalidis Research Report. Athens: Hellenic Foundation for European and Foreign Policy, 2017 | 4 | 2017 |
| Bulgarian-Turkish Relations, 1990-2003. The View from Abroad Y Christidis Bulgarian Historical Review/Revue Bulgare d'Histoire, 167-186, 2005 | 1 | 2005 |
| PAVE Consortium R Ilazi, A Orana, AK Feta, Y Christidis Foreign Policy, 2022 | | 2022 |
| North Macedonia. After Greece, Bulgaria Appears. North Macedonia’s Obstacle Course to Enter the EU Y Christidis IEMed: Mediterranean yearbook, 230-233, 2022 | | 2022 |
| BREAKING THE “HOSTILITY DISCOURSE”: BORDER SECURITY COOPERATION BETWEEN ATHENS AND SKOPJE SINCE THE BEGINNING OF THE REFUGEE CRISIS (2015-June 2018)” A Chupeska-Stanishkovska, Y CHRISTIDIS 35VOL. XVIII, 2018 | | 2018 |
| Thirty Third Year D Cheshmedzhiev, R Kowatschev, W Letschev, S Michailov, С Mitchéva, ... | | |
| Research Quarterly, Organ of the Institute of History at the Bulgarian Academy of Sciences S Michailov, D Cheshmedzhiev, R Kowatschev, W Letschev, С Mitchéva, ... | | |
