DC diaphragm discharge in water solutions of selected organic acids Edita J. Vyhnankova, Malte U. Hammer, Stephan Reuter and Frantisek Krcma Eur. Phys. J. Appl. Phys., 71 2 (2015) 20809 Published online: 15 July 2015 DOI: 10.1051/epjap/2015150071