Victor Natykanets(nice), Victor Natykanets(important), Askar Isabekov(nice), Askar Isabekov(important), Andrei Shevchik(important), Semion Levy(interesting), Semion Levy(nice), Andrey Borodin(nice), Andrey Borodin(interesting), Igor Sikorsky(nice), Anna Golubeva(nice), Yury Shautsou(interesting)