1 (84) | Russian Academy of Sciences * | RUS | ![]() | |
2 (202) | Polish Academy of Sciences * | POL | ![]() | |
3 (234) | Hungarian Academy of Sciences * | HUN | ![]() | |
4 (283) | Bulgarian Academy of Sciences * | BGR | ![]() | |
5 (300) | Academy of Sciences of the Czech Republic * | CZE | ![]() | |
6 (357) | Institute of Mathematics and Informatics Bulgarian Academy of Sciences | BGR | ![]() | |