1. Interstellar Grains in Primitive Meteorites: Diamond, Silicon Carbide, and Graphite
2. Artymowicz, P. 1994, in Circumstellar Dust Disks and Planet Formation, ed. R. Ferlet & A. Vidal-Madjar (Gif-sur-Yvette: Editions Frontieres), 47
3. Beckwith, S. V., Henning, Th. & Nakagawa, J. 1999, in Protostars and Planets IV, ed. V. Mannings, A. Boss, & S. Russell (Tucson: Univ. of Arizona Press), in press
4. Broom, G. P. 1979, Filtration and Separation, November/December, 661
5. Particle bounce in cascade impactors.