Design and Development of a Low-Cost Circuit for Soil Electrical Conductivity Measurement Using the Wenner Array Method. - Vasileios D. Koufogeorgos; Argyrios T. Hatzopoulos; Kyriakos Tsiakmakis; Vasileios Vassios; Maria S. Papadopoulou; Dimitrios K. Papakostas (MOCAST, 2025)