Beroual, Ahmed, and Hacene Houari. “Assessment of Cavities and Water Contents through the Complex Dielectric Permittivity Computed by the Boundary Integral Equation Method”. Journal of Civil Engineering and Management 12, no. 4 (December 31, 2006): 277-283. Accessed November 29, 2024. https://jcem.vgtu.lt/index.php/JCEM/article/view/8813.