1 (6) | Russian Academy of Sciences * | RUS | ![]() | |
2 (236) | Academy of Sciences of the Czech Republic * | CZE | ![]() | |
3 (261) | Polish Academy of Sciences * | POL | ![]() | |
4 (334) | Slovak Academy of Sciences * | SVK | ![]() | |
5 (399) | Institute of Archaeology and Ethnography Russian Academy of Sciences | RUS | ![]() | |
6 (453) | Bulgarian Academy of Sciences * | BGR | ![]() | |