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2001MNRAS.327.1244M - Mon. Not. R. Astron. Soc., 327, 1244-1248 (2001/November-2)
Improved constraints on possible variation of physical constants from H I 21-cm and molecular QSO absorption lines.
MURPHY M.T., WEBB J.K., FLAMBAUM V.V., DRINKWATER M.J., COMBES F. and WIKLIND T.
Abstract (from CDS):
Abstract Copyright: The Royal Astronomical Society
Journal keyword(s): line: profiles - techniques: spectroscopic - quasars: absorption lines - quasars: individual: PKS 1413+135 - quasars: individual: TXS 0218+357
Simbad objects: 4
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