 |
| |||
| pax address (MichaelBurov); passenger address (MichaelBurov); pax address system (MichaelBurov); passenger address system (MichaelBurov) | |||
| радиооповещение: 18 phrases in 6 subjects |
| Aviation | 11 |
| Energy industry | 1 |
| Information security and data protection | 1 |
| Military | 2 |
| Radio | 2 |
| Telecommunications | 1 |