Wen, Chunde
Geologic effect of radiowave penetration method for detecting caverns in karst area
Carsologica Sinica, vol. 8 no. 2 (1989) 156-162
Geologic effect of radiowave penetration method for detecting caverns in karst area
Carsologica Sinica, vol. 8 no. 2 (1989) 156-162