International RUSSIA EXPO forum and exhibition. Knowledge: Pioneers marathon. Knowledge Is Power track. VGTRK military correspondent Egor Grigoryev.
- Author: Ramil Sitdikov
- Credit: Sputnik
- Source: host photo agency: RIA Novosti
- Original: Digital
- Media: JPEG, 7719x5083px, 20.7Mb
- Job-ID: 2b8a867e2b67c8ae