EL HAMEEDY, M.A., MABROUK, W.M., DAHROUG, S. and METWALLY, A.M. 2023. Detection of karst features and associated geohazard using ground penetrating radar and 2D electrical resistivity imaging; case study from Sannur protectorate, Egypt. Contributions to Geophysics and Geodesy. 53, 3 (Oct. 2023), 167‒190. DOI:https://doi.org/10.31577/congeo.2023.53.3.1.