Comment on "Limits on the Time Variation of the Electromagnetic Fine-Structure Constant in the Low Energy Limit from Absorption Lines in the Spectra of Distant Quasars"

J.K. Webb et al. , Phys. Rev. Lett. 82

1999

Earlier work this paper cites.

M.T. Murphy et al. , Mon. Not. Roy. Soc. 345

2003

Earlier work this paper cites.

R. Srianand et al. , Phys. Rev. Lett. 92

2004

Cited alongside, same era.

H. Chand et al. , Astron. Astrophys. 417

2004

Cited alongside, same era.

M.T. Murphy et al. , Lecture Notes Phys. 648

2004

Later among the works it cites.

M.T. Murphy et al. , arXiv:astro-ph/0612407

Original

2004

Later among the works it cites.