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- [2] ARE FORBIDDEN LINES PRESENT IN THE OPTICAL-SPECTRUM OF THE QSO 3C 273 ASTROPHYSICAL JOURNAL, 1984, 283 (02): : 529 - 531
- [3] THE NATURE OF RADIO-QUIET QSOS - VLA OBSERVATIONS OF 0026+129, 0205+024, AND 1351+640 ASTRONOMICAL JOURNAL, 1984, 89 (06): : 753 - 757
- [7] ON FORBIDDEN NI LINES IN FRAUNHOFER SPECTRUM ZEITSCHRIFT FUR ASTROPHYSIK, 1967, 66 (02): : 156 - &
- [8] The nature of the "forbidden" lines in the PbI spectrum PHYSICAL REVIEW, 1934, 45 (01): : 64 - 65
- [10] ON FORBIDDEN LINES OF NEUTRAL SULPHUR IN FRAUNHOFER SPECTRUM ZEITSCHRIFT FUR ASTROPHYSIK, 1968, 68 (02): : 151 - &