Search catalogue
| J/A+AS/93/399 | Optical ident. of steep spectrum radio sources (Wieringa+ 1992) |
| Optical identifications of faint ultra-steep spectrum radio sources | |
| Author(s) | WIERINGA M.H., KATGERT P. |
| Bibcode | Astron. Astrophys. Suppl. Ser. 93, 399 (1992) 1992A&AS...93..399W |
| Date | 12-Jun-1993 |
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