GPR detection of several common subsurface voids inside dikes and dams

by Xu, Xingxin, Zeng, Qiaosong, Li, Dong, Wu, Jin ml, Wu, Xiangan ml, Shen, Jinyin
Source: 1. Engineering geology 1. Roč. 111, č. 1-4 (február 2010), s. 31-42 1. 0013-7952