Kashfiyot
Xizmatlar
Identifikatsiya
Ishlab chiquvchilar uchun
Ekotizim
2 ta ish
Saint Petersburg Mining University
Alexander V. Martirosyan, Yury V. Ilyushin, Olga Afanaseva
Olga Afanaseva, Mikhail Afanasyev, Semyon Neyrus +2