Редколлегия SuperProblem поздравляет Александра Мельничука с ЮБИЛЕЕМ!
Today Alexander Melnichuk celebrates his sixty. Our warm greetings on the occasion of this Jubilee!
Редколлегия SuperProblem поздравляет Zoran Gavrilovski с ЮБИЛЕЕМ!
Today Zoran Gavrilovski celebrates his fifty. Our warm greetings on the occasion of this Jubilee!