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| отдельный журнал | |||
| одиночный журнал регистрации (oleg.vigodsky) | |||
| single log: 13 phrases in 10 subjects |
| Computers | 1 |
| Forestry | 2 |
| Geophysics | 2 |
| Mathematics | 1 |
| Nautical | 1 |
| Oil / petroleum | 2 |
| Pulp and paper industry | 1 |
| Quality control and standards | 1 |
| Water resources | 1 |
| Wood processing | 1 |