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Article Contents
1 Introduction
2 The sample
3 Observational data
4 The circumstellar model
5 CO line modelling
6 Dust radiative transfer and dynamical model
7 Results
8 Individual objects
9 Discussion
10 Conclusions
Online Material
Appendix A: A new mass loss rate formula
Appendix B: Photometric fluxes and dust radiative transfer
Appendix C: Results from the CO line radiative transfer model

List of tables
List of figures

Copyright ESO 2008
Published by EDP Sciences