TY - JOUR A1 - Pitz, M A1 - Birmili, W A1 - Schmid, O A1 - Peters, A A1 - Wichmann, H E A1 - Cyrys, J T1 - Quality control and quality assurance for particle size distribution measurements at an urban monitoring station in Augsburg, Germany. Y1 - 2008/09/ N1 - R832415 N1 - R832415C002 JF - JOURNAL OF ENVIRONMENTAL MONITORING J1 - J ENVIRON MONITOR J2 - J.Environ.Monit. J3 - J Environ Monit VL - 10 IS - 9 SP - 1017 EP - 1024 ER - TY - JOUR A1 - Yue, W A1 - Stolzel, M A1 - Cyrys, J A1 - Pitz, M A1 - Heinrich, J A1 - Kreyling, W G A1 - Wichmann, H A1 - Peters, A A1 - Wang, S A1 - Hopke, P T1 - Source apportionment of ambient fine particle size distribution using positive matrix factorization in Erfurt, Germany. Y1 - 2008/07/15 N1 - R832415 N1 - R832415C001 N1 - R827354 N1 - R832415C002 N1 - R834797 VL - 398 IS - 1-3 SP - 133 EP - 144 ER -