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Article Contents
1 Introduction
2 Metallicity dependence of the surface temperature
3 Variation of the C+ layer size with metallicity
4 [CII] emission as a function of Z
5 Summary
Online Material
Appendix A: Cooling functions
Appendix B: The electron density at PDR surfaces
Appendix C: H2 vibrational heating

List of tables
List of figures

Copyright ESO 2006
Published by EDP Sciences