1. Evaluation of numerical-analysis methods for determining variations in transmissibility;Sammel;Intern. Assoc. Sci. Hydrol.,1964
2. Numerical analysis of regional water levels to define aquifer hydrology;Stallman;Trans., Am. Geophys. Union, K 37,1956
3. Stallman , R. W. Orientation of axes for calculating distribution of transmissibility from water-level altitudes E165 E166 1963
4. Stallman , R. W. Calculation of resistance and error in an electric analog of steady flow through nonhomogeneous aquifers 1963