Corrigendum to Derivation of empirical relationships between geotechnical parameters and resistivity using electrical resistivity tomography (ERT) and borehole data at Sohag University site, Upper Egypt [J. Afr. Earth Sci. 158 (2019) 103563]. (November 2019) - Mohammed, M.A.; Senosy, M.M.; Abudeif, A.M.