TY - SER TI - Journal of Hydrology. Vol. 21 No. 4 (1974) PY - 0000///[date of publication not identified] CY - Amsterdam : North-Holland Publishing Company. N1 - It contains of Papers, Book Reviews and Notes on August 1974 in Vol. 21 No. 4; Probability distribution of outflow from a linear reservoir / V. Klemes. Simultaneous evaluation of drawdown data from several observation wells by means of a modification of the Walton method / O. Koefoed. Estimation of the daily potential evapotranpiration values of an hydrographic basin / F. Bultot and G. L. Dupriez. Chemical water types and their distribution in space and time in the Amsterdam dune-water catchment area with artificial recharge / G. B. Engelen and A. J. Roebert. Steady flow patterns in saturated and unsaturated isotropic soils / P. A. C. Raats. Predicting sediment yield from climate and topography / J. M. L. Jansen. Finite element analysis of three dimensional groundwater flow problems / O. W. France. Recent publications. Note. Author index vol. 21 (1974) ER -