Mastrup, F. (1960). An experimental determination of the absolute oscillator strengths of the lines of two N II supermultiplets.
Chicago-referens (17:e uppl.)Mastrup, Frithjof. An Experimental Determination of the Absolute Oscillator Strengths of the Lines of Two N II Supermultiplets. Washington, 1960.
MLA-referens (8:e uppl.)Mastrup, Frithjof. An Experimental Determination of the Absolute Oscillator Strengths of the Lines of Two N II Supermultiplets. 1960.
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