1. Unsteady radial flow to a pumped well allowing for delayed yield from storage;Boultion;Publication No. 37 de l'Association Internationale d'Hydrologie, Assemblée générale de Rome,1955
2. Analysis of data from non-equilibrium pumping tests allowing for delayed yield from storage;Boulton,1963
3. The drawdown of the water-table under non-steady conditions near a pumped well in an unconfined formation;Boulton,1954
4. A method of determining the permeability and effective porosity of unconfined anisotropic aquifers;Dagan;Water Resources Res.,1967