What is (are) the original paper(s) relating to the interpretation of the CMBR anisotropy in setting the cosmic abundances? I did pose the same question last year but it got lost in another thread. I had found papers by Hu and Dodelson from 2002, Hu and white from 1996 and Seljak from 1994 as well as a recent review by Tojerio 2006. More recently I have read Hu & Sugiyama (1995) paper. A clear technical answer appears to elude me for the mechanism of the relative heights of the peaks as evidence for the cosmic abundances of baryonic matter, dark matter and dark energy.