Based on observatios with ISO, an ESA project with instruments funded by ESA Member States (especially the PI countries: France, Germany, the Netherlands and the UK) with the participation of ISAS and NASA.

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Table 1, Fig. 1 and Appendices A and B are only available in electronic form at http://www.edpsciences.org

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... site

http://web.pd.astro.it/granato/grasil/grasil.html or: http://adlibitum.oat.ts.astro.it/silva/grasil/grasil.html

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