Fundamentals of approximation theory  
Mhaskar, H. N. 
 - Boca Raton : | New Delhi :  CRC Press ; | Narosa Pub. House,  2000 
 - xv, 541 p. :  ill. ;  25 cm. 
<br/><br/><label>ISBN: </label>0849309395 (alk. paper) | 9788173198564 (alk. paper