Berhanu, Shiferaw <br/><br/>
An introduction to involutive structures 

 - 1st ed 
 - Cambridge:  Cambridge University Press,  2008 
 - xii, 392 p. ; 24 cm 
<br/><br/><label>ISBN: </label>9780521878579 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Approximation theory
<br/><br/><label>Dewey Class. No.: </label>515.63 BER