Richard L. Cooley. <br/><br/>
A Modular Finite-Element Model (MODFE) For Areal & Axisymmetric Grd.-Water Flow Prblems, Pt. 2: Derivation of Finite-Element Equations & Comparisions With Analytical Solutions 

 - Chapter A4 
 - US Govt. Printing Off.  [date of publication not identified] 
 - p. 
 - Techniques of Water-Resources Investigations of the US Geological Survey Book 6 Chapter A4 .
<br/><br/> Bk. 6