Kashfiyot
Xizmatlar
Identifikatsiya
Ishlab chiquvchilar uchun
Ekotizim
2 ta ish
Sobolev Institute of Mathematics
Sirojiddin Dzhamalov, Ravshan Ashurov, Alexandr Kozhanov
Alexandr Kozhanov, O. S. Zikirov, Dilshod Kholikov