Simultaneous automatic electrochemical detection of zinc, cadmium, copper and lead ions in environmental samples using a thin-film mercury electrode and an artificial neural network. - Kudr J; Nguyen HV; Gumulec J; Nejdl L; Blazkova I; Ruttkay-Nedecky B; Hynek D; Kynicky J; Adam V; Kizek R (Sensors (Basel, Switzerland), 2014)