Păltănea, Radu,  1953- <br/><br/>
Approximation theory using positive linear operators / 
Radu Paltanea. 
 -  24 cm. 
<br/><br/><label>ISBN: </label>0817643508 (acid-free paper) 
<br/><br/><label>LCCN: </label>2004054852 
<br/><br/><label>LC Class. No.: </label>QA221  / .P25 2004