TY - JOUR A1 - Kim, E A1 - Hopke, P K A1 - Larson, T V A1 - Covert, D S T1 - Analysis of ambient particle size distributions using Unmix and positive matrix factorization. Y1 - 2004/01/1 N1 - R827354C002 N1 - R832415 N1 - R827354 N1 - R827354C001 N1 - R827355C008 N1 - R827355 N1 - R827355C004 JF - ENVIRONMENTAL SCIENCE & TECHNOLOGY J1 - ENVIRON SCI TECHNOL J2 - ENVIRONMENTAL SCIENCE & TECHNOLOGY J3 - Enviornmenal Research VL - 38 IS - 1 SP - 202 EP - 209 ER -