Sewell M J <br/><br/>
Maximum and minimum principles  A unified approach    

 - London  Cambridge University Press          1987 
 - xvi,468p  cm. 
 - Cambridge Texts in Applied Mathematics .
<br/><br/> Bibliography:  P 444-460 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Real Variable
<br/><br/><label>Dewey Class. No.: </label>B37:7, M7