Hello Pierrick
I work at refractions with Jody and Richard on the west coast of canada for Refractions Research. I don't think we have been introduced yet, so though I might say hello. Noticed you were from france and was wondering what you 'drive' is (academic / industry ...). If you're curious about refractions, our website is at www.refractions.net .
Anyways, hope you're having a good week,
David