Research output: Contribution to journal › Article › peer-review
| Original language | Russian |
|---|---|
| Pages (from-to) | 125-129 |
| Journal | ВЕСТНИК ЛЕНИНГРАДСКОГО УНИВЕРСИТЕТА. СЕРИЯ 1: МАТЕМАТИКА, МЕХАНИКА, АСТРОНОМИЯ |
| Volume | 3 |
| Issue number | 13 |
| State | Published - 1967 |
ID: 5105881