Schoenberg, I. J. <br/><br/>
Approximations with Special Emphasis on Spline  Functions 
/ by I. J. Schoenberg 
 - London:  Academic Press;  1969. 
 - 488p. 
<br/><br/><label>ISBN: </label>000 
<br/><br/><label>Dewey Class. No.: </label>512.15  / SCH/A