Research output: Contribution to journal › Article › peer-review
| Original language | English |
|---|---|
| Pages (from-to) | 191-193 |
| Number of pages | 3 |
| Journal | Optics and Spectroscopy (English translation of Optika i Spektroskopiya) |
| Volume | 66 |
| Issue number | 2 |
| State | Published - 1989 |
ID: 9569720