TY - JOUR A1 - Maciejczyk, P B A1 - Kidwell, C A1 - Ondov, J M T1 - System for precise control of volumetric flow rate during sampling with a cascade impactor. Y1 - 2002/04/ N1 - R825247 JF - AEROSOL SCIENCE AND TECHNOLOGY J1 - AEROSOL SCI TECH J2 - Aerosol Sci.Technol. J3 - Aerosol Sci Technol VL - 36 IS - 4 SP - 397 EP - 406 PB - Taylor and Francis Group ER -