Appell, Jurgen and Zabrejko, Peter P. <br/><br/>
Nonlinear superposition operators   

 - Cambridge  Cambridge University Press  1990 
 - 311p. Index, Bibl. 
 - Cambridge tracts in Mathematics   v. 95 .
<br/><br/>  
<br/><br/><label>Dewey Class. No.: </label>515.72  / Ap646.NS