An unusually strong Einstein ring in the radio source PKS1830–211

✍ Scribed by Jauncey, D. L.; Reynolds, J. E.; Tzioumis, A. K.; Muxlow, T. W. B.; Perley, R. A.; Murphy, D. W.; Preston, R. A.; King, E. A.; Patnaik, A. R.; Jones, D. L.

• Book ID: 109777578
• Publisher: Nature Publishing Group
• Year: 1991
• Tongue: English
• Weight: 577 KB
• Volume: 352
• Category: Article
• ISSN: 0028-0836
• DOI: 10.1038/352132a0