M. A. EL HAMEEDY, W. M. MABROUK, S. DAHROUG, and A. M. METWALLY, “Detection of karst features and associated geohazard using ground penetrating radar and 2D electrical resistivity imaging; case study from Sannur protectorate, Egypt”, Contrib. Geophys. Geod., vol. 53, no. 3, p. 167‒190, Oct. 2023.