Zienkiewicz, O.C. <br/><br/>
Finite elements and approximation 

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 -  New York; Wiley  1983 
 - xii,327p.   
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<br/><br/><label>Subjects--Index Terms: </label>finite elements  finite element  Partial differential equations 
<br/><br/><label>Dewey Class. No.: </label>517.962