TY - JOUR AU - Gravner, Janko AU - Griffeath, David TI - Modeling snow crystal growth. I: Rigorous results for Packard's digital snowflakes. JO - Experimental mathematics PY - 2006 SP - 421 EP - 444 VL - 15 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/EXMA_2006__15_4_232102/ LA - en ID - EXMA_2006__15_4_232102 ER -