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This paper presents two methods for decomposing into individual components an observed spectrum composed of a number of overlapping spectral lines, each having the same known shape. The first method of solution described is for lines all of the same half-width and is based on properties of the Fourier transform of even functions. The second method presented is an iterative least-squares procedure for lines of different half-widths and for which a computer program is available.
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Henry Stone (1962) studied this question.
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