Electric potentials and charges on buildings and areas around deep water wells Arkadiy Plugin, Oliksii Pluhin, Olena Palant, Oleksandr Konev and Andrii Nikitinskii MATEC Web Conf., 116 (2017) 01011 Published online: 10 July 2017 DOI: 10.1051/matecconf/201711601011