Ball, J M <br/><br/>
Systems of no linear partial differential equations [proceedings] 

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 - Dordrecht  D Reidel  1983 
 - ix,481p.   
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<br/><br/><label>Subjects--Index Terms: </label>nonlinear par. diff.equations  Functional equations 
<br/><br/><label>Dewey Class. No.: </label>517.957