Kashfiyot
Xizmatlar
Identifikatsiya
Ishlab chiquvchilar uchun
Ekotizim
2 ta ish
Gubkin Russian State University of Oil and Gas
Mikhail Ershov, Rashid Jalilov, S.P. Shayimova +2
Mikhail Ershov, Valentina Blyuk, R.B. Zhalilov