La diffusion de la lumière par des grains de poussière circumstellaire de forme quelconque

This document disseminated on Papyrus is the exclusive property of the copyright holders and is protected by the Copyright Act (R.S.C. 1985, c. C-42). Unless the document is published under a Creative Commons licence, it may be used for fair dealing and non-commercial purposes, for private study or research, criticism and review as provided by law. For any other use, written authorization from the copyright holders is required.