Timan, Aleksandr Filippovich, <br/><br/>
Theory of approximation of functions of a real variable 
 Teorii apriblizhenii a funkt s ii deistvitel nogo peremennogo: 

 - New York:  Dover Publication,  1994. 
 - viii, 631 p.:  22 cm. 
<br/><br/> Dover ed.  
<br/><br/><label>ISBN: </label>9780486678306 
<br/><br/><label>Dewey Class. No.: </label>515.8 TIM