180 citations · 1k across the 27 of their papers we have counts for
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astro-ph2005★ 1 cited
CMBR distortion concerned with recombination of the primordial hydrogen plasma
E. E. Kholupenko, A. V. Ivanchik, D. A. Varshalovich
CMBR distortion concerned with recombination of the primordial plasma is calculated in frequency band from 1 GHz to 100 GHz in the frame of the standard cosmological model for diff…
astro-ph2005★ 99 cited
A new constraint on the time dependence of the proton-to-electron mass ratio. Analysis of the Q 0347-383 and Q 0405-443 spectra
A. Ivanchik, P. Petitjean, D. Varshalovich +5
A new limit on the possible cosmological variation of the proton-to-electron mass ratio μ=m_p/m_e is estimated by measuring wavelengths of H_2 lines of Lyman and Werner bands from…