| Title | Publisher(s) | ISSN | Year |
|---|---|---|---|
| CMDR COE proceedings [сборник] | Crisis Management and Disaster Response Centre of Exellence | 2367-766X | 2015- |
| Energy and climate diplomacy [сборник] | Bulg. Diplomatic Inst. | 2815-486X | 2020- |
| International Scientific Conference Investments in the Future... [сборник] | Sci. and Techn. Unions | 1314-3719 | 2011- |
| Summer Seminar for Young Public Policy Professionals from Southeastern Europe and the Black Sea Region [сборник] | Economic Policy Institute | 1314-2151 | 2000- |
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