TY - JOUR A1 - Helsper, Christoph A1 - Mölter, W. T1 - Determination and Neutralization of the Charge Produced by the Dispersion of Powders JF - Journal of Aerosol Science. 18 (1987), H. 6 Y1 - 1987 SN - 0021-8502 SP - 877 EP - 880 ER -