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About 180 new spectral lines of Ne v, Ne vi, Ne vii, and Ne viii have been measured and identified on spectrograms obtained from a large theta-pinch apparatus. The spectrograms covered the range from 50 to 200 Å. The lines were classified by means of isoelectronic extrapolations and interpolations.
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H. Hermansdorfer (1972) studied this question.
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