“From discs to planetesimals I: evolution of gas and dust discs”: excellent review article by R. Alexander, arXiv:0712.0388, to appear in New Astronomy Reviewshttp://arxiv.org/abs/0712.0388shapeimage_6_link_0
Denser than leadNews_%26_Articles/Entries/2008/10/10_DENSER_THAN_LEAD.htmlshapeimage_7_link_0