Kashfiyot
Xizmatlar
Identifikatsiya
Ishlab chiquvchilar uchun
Ekotizim
3 ta ish
Interstate Commission for Water Coordination of Central Asia
Valeri S. Chekanov, G. Tchekanov, A S Dumchius +4
Imran Sheikh, G. Tchekanov, David Krum +10
Valeri S. Chekanov, Arimantas Dumčius, Pavel Karakozov