Guangquan Li, Yunpeng Zhang, Geary M Schindel, Malcolm S Field, Nico Goldscheider. RAYLEIGH WAVE AND WELL HEAD RESPONSE TO CALCULATE POROSITY IN THE EDWARDS AQUIFER OF SOUTH-CENTRAL TEXAS, USA.Acta carsologica = Krasoslovni zbornik. 2020, 49 (2-3): 241-253