✦ LIBER ✦
The DFS-13 spectrograph with a 400 lines/mm grating
✍ Scribed by É. E. Fain; N. V. Vyatchennikova
- Publisher
- Springer US
- Year
- 1971
- Tongue
- English
- Weight
- 280 KB
- Volume
- 15
- Category
- Article
- ISSN
- 0021-9037
No coin nor oath required. For personal study only.