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Article Contents
1 Introduction
2 Imprints from primordial molecules on the CMB
3 Recombination and the formation of molecules in the early universe
4 The chemical network
5 The numerical algorithm
6 Results from the molecular network
7 Effects of different species on the cosmic microwave background
8 Discussion and outlook
Appendix A: Free-free transitions involving H-
Appendix B: Reaction rates

List of tables
List of figures

Copyright ESO 2008
Published by EDP Sciences