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1989AJ.....98.2052L - Astron. J., 98, 2052-2055 (1989)
Molecules at high redshift. V. Improved limits on the column density of CO in two damped Lyman-alpha absorption systems.
LEVSHAKOV S.A., FOLTZ C.B., CHAFFEE F.H. and BLACK J.H.
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Simbad objects: 2
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