A study of the square-wave modulation for the determination of trace metals by anodic and adsorptive stripping voltammetry on bismuth-film electrodes - Economou, Anastasios; Voulgaropoulos, Anastasios (Scientific papers of the University of Pardubice. Series A, Faculty of Chemical technology. 10 (2004)Scientific papers of the University of Pardubice. Series A, Faculty of Chemical technology. 10 (2004), 2005)