TY - JOUR A1 - de Rooij, G. H. T1 - Averaging hydraulic head, pressure head, and gravitational head in subsurface hydrology, and implications for averaged fluxes, and hydraulic conductivity JO - Hydrol. Earth Syst. Sci. J1 - HESS VL - 13 IS - 7 SP - 1123 EP - 1132 Y1 - 2009/07/13 PB - Copernicus Publications SN - 1607-7938 UR - http://www.hydrol-earth-syst-sci.net/13/1123/2009/ L1 - http://www.hydrol-earth-syst-sci.net/13/1123/2009/hess-13-1123-2009.pdf DO - 10.5194/hess-13-1123-2009 ER -