| 1 (183) | University of Ljubljana * | SVN |  |
| 2 (217) | Russian Academy of Sciences * | RUS |  |
| 3 (257) | University of Tartu | EST | |
| 4 (263) | University of Zagreb | HRV | |
| 5 (293) | Charles University * | CZE | |
| 6 (319) | State University - Higher School of Economics | RUS | |
| 7 (330) | Masaryk University | CZE | |
| 8 (335) | Jagiellonian University | POL | |
| 9 (348) | University of Warsaw | POL | |
| 10 (357) | Academy of Sciences of the Czech Republic * | CZE | |
| 11 (411) | Hungarian Academy of Sciences * | HUN | |
| 12 (448) | Tallinn University of Technology | EST | |
| 13 (464) | Vilnius University | LTU | |
| 14 (465) | Josip Juraj Strossmayer University of Osijek | HRV | |
| 15 (470) | Nicolaus Copernicus University | POL | |
| 16 (492) | Polish Academy of Sciences * | POL | |
| 17 (498) | Bulgarian Academy of Sciences * | BGR | |
| 18 (502) | Adam Mickiewicz University | POL | |
| 19 (574) | Saint Petersburg State University | RUS | |
| 20 (618) | Eotvos Lorand University | HUN | |
| 21 (624) | University of Bialystok | POL | |
| 22 (635) | Institute of Mathematics and Informatics Bulgarian Academy of Sciences | BGR | |
| 23 (670) | National Academy of Sciences of Ukraine * | UKR | |
| 24 (672) | University of Warmia and Mazury | POL | |
| 25 (678) | Palacky University * | CZE | |
| 26 (695) | Sofia University | BGR | |
| 27 (723) | Budapest University of Technology and Economics | HUN | |
| 28 (728) | Borys Grinchenko Kyiv Metropolitan University | UKR | |
| 29 (736) | University of Zadar | HRV | |
| 30 (761) | University of Craiova | ROU | |
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