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Analysis II: convex analysis and approximation theory 

 - Berlin  Springer-Verlag  1990 
 - 256p., 22 cm. 
 - Encyclopaedia of mathematical sciences .
<br/><br/><label>ISBN: </label>0387170081 
<br/><br/><label>Dewey Class. No.: </label>515.72,  / DD, Ana