= Spectrophotometry of the Double QSO, 0957 + 561 by Beverley J. Wills and D. Wills
{c}
{tag=Work by Beverley J. Wills}
{tag=Work by D. Wills}
{title2=1980}
By <Beverley J. Wills>, <D. Wills>.
Published in The Astrophysical Journal.
Online text: https://adsabs.harvard.edu/pdf/1980ApJ...238....1W
Cited passages: Abstract, printed p. 1; section III, pp. 4-5; section IV, pp. 6-7; note added in proof, p. 7, and Figure 3, p. 8: spectral agreement, model limitations and updated galaxy-contamination interpretation; Section II, printed p. 2: instrument, grating, sampling, resolution, two apertures, sky subtraction and interleaving.
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